DRAPER 83953 Air Angle Grinder, 100mm User Manual

8395 3

AIR

ANGLE

GRINDER

Original Instructions

Version 2 - August 2025

– 2 –

These are the original product instructions. This

document is part of the product; retain it for the life

of the product, passing it on to subsequent holders.

Read this manual in full before attempting to

assemble, operate or maintain this product.

This Draper Tools manual describes the purpose

of the product and contains all the necessary

information to ensure its correct and safe use.

Following all the instructions and guidance in

this manual will ensure the safety of both the

product and the operator and increase the

lifespan of the product.

All photographs and drawings within this manual are

supplied by Draper Tools to help illustrate correct

operation of the product.

Every eort has been made to ensure the

information contained in this manual is accurate.

However, Draper Tools reserves the right to amend

this document without prior warning. Always use the

latest version of the product manual.

1.1 Product Reference

User Manual for: Air Angle Grinder

Stock No: 83953

Part No: DAT-AAG

1.2 Revisions

Version 1: November 2017

First release

Version 2: August 2025

As our manuals are continually updated, always ensure

that the latest version is used.

Please visit drapertools.com/manuals for the latest

version of this manual and the associated parts list, if

applicable.

1.3 Understanding the Safety Content

of This Manual

WARNING!

– Situations or actions that may

result in personal injury or death.

CAUTION! – Situations or actions that may

result in damage to the product or surroundings.

Important: – Information or instructions of particular

importance.

Permission is granted to reproduce this manual for

personal and educational use ONLY. Commercial

copying, redistribution, hiring or lending is strictly

prohibited.

No part of this manual may be stored in a retrieval system

or transmitted in any other form or means without written

permission from Draper Tools Limited.

In all cases, this copyright notice must remain intact.

1. Preface

– 3 –

2. Contents

1. Preface 2

1.1 Product Reference 2

1.2 Revisions 2

1.3 Understanding the Safety Content 2

2. Contents 3

3. Product Introduction 4

3.1 Intended Use 4

3.2 Specication 4

4. Health and Safety Information 5

4.1 Health and Safety Instructions

for this Angle Grinder 5

4.2 Additional Safety Instructions

for Compressed Air 7

4.3 Residual Risk 7

5. Identication and Unpacking 8

5.1 Product Overview 8

5.2 Packaging 8

6. Preparation Instructions 9

6.1 Preparing the Air Supply for use 9

6.2 Connecting to the Air Supply 9

6.3 Reposition the Guard 10

6.4 Installing Grinding Wheel/Disc 10

6.5 Attaching Side Handle 10

7. Operation 11

7.1 ON/OFF Trigger 11

7.2 Basic Operation 11

8. Maintenance and Troubleshooting 12

8.1 General Maintenance 12

8.2 Troubleshooting 12

9. Spares, Returns and Disposal 13

10. Warranty 13

11. Explanation of Symbols 14

– 4 –

3. Product Introduction

Stock No. 83953

Part No. DAT-AAG

Disc Size 100mm (4")

Bore Size 16mm

Spindle Size M10 X 1.5mm

Speed (no load) 11,000rpm

Max. Air Pressure Operation 90psi (6.2bar)

Average Air Consumption 184L/min (6.5cfm)

Minimum Air line (Inner Diameter) 10mm (3/8")

Air Inlet Connector 1/4" BSP

Noise emissions

Sound pressure level (LpA) 87dB (A)

Sound power level (LWA) 98dB (A)

Vibration level 2.43m/s

Net weight (air tool only) 1.67kg

3.2 Specication

3.1 Intended Use

This air angle grinder is designed for use with grinding

wheels/discs to grind metals, removal of rust and paint

and for other sanding and polishing applications.

Intended for use with a suitable compressed air supply.

NOT suitable for use with cutting discs.

Any other application beyond the conditions established

for use will be considered misuse. Draper Tools accepts no

responsibility for improper use of this product.

Read this manual in full before attempting to assemble,

operate or maintain the product, and retain it for later use.

Important: The declared vibration total values and noise emissions values have been measured in accordance with a

standard test method and may be used for comparing one tool with another. These values may also be used in a

preliminary assessment of exposure.

 WARNING!Thevibrationandnoiseemissionsduringactualuseoftheproductcandierfromthedeclared

values depending on the type of work and the area upon which it is used. Before each use, estimate the

likely exposure resulting from the actual conditions of use. Take into account all parts of the operation

cycle in order to identify any safety measures required to protect the operator.

– 5 –

4.1 Health and Safety Instructions

for this Angle Grinder

WARNING! Read and understand the safety

instructions before installing, operating,

repairing, maintaining, replacing accessories,

or working near the grinder. Failure to do so can

result in serious bodily injury.

General Safety Instructions

• Only trained and authorised personnel should install,

adjust or operate the grinder.

• DO NOT modify this grinder.

− Modications can reduce the eectiveness of

safety measures and increase the risk of injury.

• Retain these instructions for the life of the product

and pass them on with the tool to any future

operators.

• DO NOT use this grinder if it has been damaged.

• Regularly inspect the grinder to ensure that all safety

markings remain legible.

− Contact Draper Tools if the safety markings need

to be replaced and DO NOT use the tool.

Projectile Hazards

• Be aware that failure of the workpiece, accessories or

tool itself may generate high-velocity projectiles.

• ALWAYS wear impact-resistant eye protection during

operation of the grinder and assess the grade of

protection required with each use.

• When working overhead, ALWAYS wear a safety

helmet.

• Carefully assess the risk to others before every

operation and ensure that all bystanders are clear of

the work area or equipped with suitable protective

equipment.

− Keep this product out of reach of children at all

times.

• ALWAYS ensure that the workpiece is rmly gripped

by a clamp or vice; NEVER hold the workpiece by

hand.

• Ensure that the grinding wheel/disc is safely tted to

the grinder.

• Check that the maximum operating speed (RPM) is

equal or greater than the rated speed of the spindle.

• NEVER use without the safety guard tted and inspect

regularly.

− Ensure that the guard is in place, in good

condition and correctly mounted.

• Check the speed of the grinder is not higher than

marked on it regularly. These speed checks should be

carried out without the abrasive product mounted and

in accordance with the manufacturer’s instructions

supplied.

• Check that the specied anges are used and are in

good condition, e.g. free from cracks and burrs.

• Check that the spindle and spindle threads are not

damaged or worn.

• Ensure that sparks and debris resulting from use DO

NOT create a hazard.

• Disconnect the grinder from the energy supply before

changing abrasive accessories and servicing the tool.

Entanglement Hazards

• Keep loose clothing, gloves, hair and jewellery well

away from the grinder at all times.

− Entanglement in the rotating parts can cause

signicant injury.

Operating Hazards

• This grinder is designed for use with grinding wheels/

discs only. DO NOT use this grinder with cutting discs.

• Avoid contact with the rotating spindle and mounted

wheel/disc to prevent cutting of hands and other body

parts.

• Wear suitable protective gloves to guard against

injury from cuts, abrasion and heat.

• If the workpiece becomes hot during operation, stop

the tool and allow the material to cool before

continuing.

• Hold the tool correctly and rmly and brace yourself

against sudden movements, keeping both hands

available.

• Maintain good balance and secure footing at all times

while operating the tool.

• Release the trigger lever immediately if the air supply

is interrupted.

• ONLY use lubricants recommended by Draper Tools.

• ALWAYS wear protective safety glasses while using

this tool.

− It is also recommended to wear protective gloves

and other protective clothing appropriate to the

specic conditions of the operation.

• ALWAYS allow the tool to come to a complete stop

and disconnect the air supply before handling or

adjusting the grinder.

4. Health and Safety Information

– 6 –

• DO NOT use the grinding wheels/discs for side

grinding. DO NOT use grinder above the maximum

specied speed of an abrasive product.

• Grinding sparks can ignite clothing and cause severe

burns. DO NOT allow sparks to land on clothing and

wear re retardant clothing and have a bucket of

water nearby.

Repetitive Motion Hazards

• When operating a grinder frequently or for extended

periods, the operator may experience discomfort in

the hands, arms, shoulders, neck and other parts of

the body.

• While using the grinder, adopt a comfortable posture

while maintaining secure footing and avoiding

awkward or o-balance positions.

− Change posture and operating positions regularly

during extended use to help avoid discomfort and

fatigue.

• DO NOT ignore symptoms such as persistent or

recurring discomfort, pain, throbbing, aching,

tingling, numbness or burning sensations.

− If these symptoms occur, stop using the tool and

consult a qualied health professional.

Accessory Hazards

• ALWAYS disconnect the grinder from the air supply

before tting or changing accessories.

• Avoid direct contact with the tted wheel/disc during

and immediately after operation as it may become hot

during use.

• ONLY use accessory types and sizes recommended by

Draper Tools.

• Ensure that the dimension of the abrasive product is

compatible with the grinder and ts the spindle.

• Ensure that the thread type and size of the abrasive

product exactly matches the spindle thread type and

size.

• Inspect the abrasive product before use. DO NOT use

abrasive products that could have been dropped or

which are chipped, cracked or otherwise defective.

• Ensure that the abrasive product is correctly mounted

and tightened before use and run the grinder at no

load speed for at least one minute in a safe position.

Stop immediately if excessive vibrations or other

defects are noted.

• Store and handle the abrasive products with care in

accordance with the manufacturer’s instructions.

Workplace Hazards

• Stay alert for surfaces that may become slippery as a

result of use of this tool and for trip hazards caused by

the air line.

• This grinder is not suitable for use in potentially

explosive atmospheres and is not insulated against

contact with electric power.

• Ensure that there are no electrical cables, gas pipes,

etc. present in the workpiece that may cause a hazard

if damaged by the tool.

Dust and Fume Hazards

• Dust and fumes generated by grinding operations can

cause ill health (e.g., cancer, birth defects, asthma

and/or dermatitis).

− Perform a risk assessment and implement any

appropriate controls for identied hazards before

performing any operation.

− Any risk assessment performed must include dust

created by use of the tool and disturbance of any

existing dust.

• Operate and maintain the grinder appropriately to

minimise the dust or fume emissions.

• Direct the exhaust so as to minimise disturbance of

existing dust in dusty environments.

• Where dust or fumes are created, priority must be

given to controlling them at the point of emission.

• All integral features and accessories for the collection,

extraction or suppression of airborne dust or fumes

must be correctly used and maintained in accordance

with the manufacturer’s instructions.

• Select, maintain and replace the consumable/

inserted tool as recommended in the manual to

prevent any unnecessary increase in the emission of

dust or fumes.

• Use appropriate respiratory protection in accordance

with local occupational health and safety regulations.

Noise Hazards

• Exposure to high noise levels can cause permanent

hearing loss and other problems.

− Perform a risk assessment and implement any

appropriate controls for identied hazards before

performing any operation.

• Implement appropriate controls, such as dampening

materials, to prevent the workpiece from “ringing”

during operation.

• Use appropriate hearing protection in accordance

with local occupational health and safety regulations.

4. Health and Safety Information

– 7 –

• Operate and maintain the grinder appropriately to

prevent unnecessary increase in noise emissions.

Vibration Hazards

• Exposure to vibration can cause disabling damage to

the nerves and blood supply of the hands and arms.

• Wear warm clothing when working in cold conditions

and keep your hands warm and dry.

• If you experience numbness, tingling, pain or

whitening of the skin in your ngers or hands, stop

using the grinder and consult a qualied health

professional.

• Operate and maintain the grinder appropriately to

prevent unnecessary increase in vibration emissions.

• DO NOT allow the inserted to chatter on the

workpiece.

• Select, maintain and replace the consumable/

inserted tool as recommended to prevent an

unnecessary increase in vibration levels.

• Support the tool in a stand, tensioner or balancer

if possible.

• The risks from vibration hazards are increased when

grip force on the tool is higher. − Hold the grinder with

a light but safe grip, keeping in mind that your grip

may need to be altered to react to unexpected forces.

• Use blotters where supplied with bonded abrasive

products.

4.2 Additional Safety Instructions

for Compressed Air

WARNING!

Compressed air can cause severe injury.

− ALWAYS turn o and disconnect the air supply

before making any adjustments to the product

or leaving it unattended.

− NEVER direct this product towards yourself

or others.

− Ensure that compressed air is not blocked by

or in contact with any part of your body.

• ONLY use clean, dry and regulated compressed air.

WARNING! NEVER use oxygen, combustible

gases or other bottled gases as a supply for this

product. Use of these substances may cause the

product to explode.

• Draper Tools recommends the use of a whip hose

between the tool and the air supply to reduce

vibration.

WARNING! Whipping hoses can cause severe

injury. Always check for and replace damaged or

loosehosesandttings.

• Ensure that the product is compatible with the air

supply before use.

• Ensure all connections are securely tightened.

• Where universal twist couplings (claw couplings) are

used, lock pins must be installed and whip check

safety cables must be used to safeguard against

possible hose-to-tool or hose-to-hose failure.

• DO NOT exceed the maximum stated air pressure.

• DO NOT obstruct the ability of the trigger to release

once depressed.

• NEVER carry the tool by the air line.

4.3 Residual Risk

The safety instructions in this manual cannot account

for all possible conditions and situations that may occur.

Exercise common sense and caution when using this

product and protect against any additional conceivable

risks.

– 8 –

(1) Front exhaust

(2) Grease point

(3) Output shaft ange nut

(4) Side handle thread

(5) Low vibration soft grip

(6) 1/4" BSP female air inlet

(7) Trigger

(8) Trigger safety lever

(9) Adjustable safety guard

(10) Air line coupling screw adaptor

(11) Side handle

(12) Pin spanner

(13) Shaft spanner

5.1 Product Overview

5.2 Packaging

5. Identication and Unpacking

Carefully remove the product from the packaging and examine it for any signs of damage that may have occurred

during shipment. If any part is damaged or missing, do not attempt to use the product. Please contact the Draper

Helpline; contact details can be found at the back of this manual.

Keep the product packaging for the duration of the

warranty period in case the product needs to be

returned for repair.

WARNING! Keep packaging materials out of

reach of children. Dispose of packaging

correctly and responsibly and in accordance

with local regulations.

(1)

(4)

(9)

(2)

(3)

(7)

(8)

(5)

(12)

(13)

(10)

(11)

(6)

– 9 –

1 Fig.

Important: Before preparing or adjusting this product,

read and understand all the safety instructions listed in

this manual.

Important: Always disconnect from the air supply before

assembling, carrying out adjustments, servicing or

maintenance.

6.1 Preparing the Air Supply for use

• This air tool operates at a max. pressure of

6.2bar (90psi).

• The compressed air system must be controlled by a

combination pressure regulator, in-line lubricator and

moisture lter. This will ensure a constant supply of

dry air at all times, provided it is properly maintained.

• Important: Always check the machine operating

pressure before use.

• Water in the compressor tank may cause considerable

corrosion to air tools; the compressor should be

drained daily to avoid excessive water in the air

supply. Dirty or wet air can signicantly shorten the

lifespan of the product.

• When using an air tool with a hose over 25ft long,

Draper Tools recommends increasing the bore of the

hose to the next largest available size (i.e. increase

3/8” to 1/2”). This will ensure adequate pressure and

volume of air to power the tool.

6. Preparation Instructions

6.2 Connecting to the Air Supply – Fig. 2

Important: It is recommended to use a 1/4" BSP

male-threaded thread whip hose (not supplied) to

connect the tool to the air line in order to reduce

vibration.

1. Wrap a length of PTFE tape (B) around the air line

coupling (A) or the whip hose thread.

2. Remove the bung from the inlet connector (6) and

attach the air line coupling or whip hose to the air

inlet. Check that the connection is secure and

airtight.

2 Fig.

(B)

(A)

– 10 –

6.3 Reposition the Guard – Fig.3

• The safety guard can be rotated to the required angle:

− Use a hex. key to remove the four bolts (9.1).

− Rotate the guard (9) in 45° increments to the

required angle.

− Ret the guard.

WARNING! NEVER operate this tool without

theguardsecurelytted.

3 Fig.

6.4 Installing Grinding Wheel/Disc – Fig.4

• Remove the ange nut (3) from the output shaft using

the spanners supplied (12) and (13).

• Place the shaft spanner (13) between the guard bolts

onto the at section of the shaft.

• Locate the pin spanner (12) over the end of the output

shaft and locate the two pins into the holes on the top

of the ange nut.

• Remove the ange nut and t a suitable grinding

wheel.

• Screw the ange nut onto the grinding wheel by hand

then tighten with the spanners.

4 Fig.

WARNING!

− ONLY use grinding wheels that have a RPM

rating equal or greater than the tool.

− This tool is designed for use with grinding

discs only.

− DO NOT use with cutting discs.

− Check the expiry date prior to mounting an

abrasive wheel. DO NOT use if past the expiry

date.

− ALWAYS select the correct accessory for the

intended application.

6.5 Attaching Side Handle - Fig.5

For safety ALWAYS use the side handle (11) when

using this grinder.

Screw the side handle (11) into the threaded aperture (4).

5 Fig.

6. Preparation Instructions

(9)

(9.1)

(3)

(12)

(4)

(11)

(13)

– 11 –

Important: Before operating this product, read and

understand all the safety instructions listed in this

manual. Ensure that the product is fully assembled and

correctly prepared for use.

7.1 ON/OFF Trigger – Fig.6

• To prevent unintentional starting the angle grinder

requires two actions to start the tool.

• Push the trigger safety lever (8) forward to release.

This then allows the trigger (7) to be pushed towards

the body of the grinder.

6 Fig.

7.2 Basic Operation

• When performing grinding operations maintain an

angle of approximately 30° between the worksurface

and the disc face.

• ONLY use abrasives specically designed for grinding.

7. Operation

(7)

(8)

– 12 –

Problem Possible Cause Remedy

Tool not operating Air pressure is too low. Check that air line is connected

securely and not damaged.

Trigger mechanism malfunctioned. Pour a little air tool oil into the air

line inlet and squeeze the trigger

several times.

Tool operates with reduced power Air line is obstructed. Switch o and detach the air line.

Clean and remove any obstructions.

Air pressure is too low. Check pressure is set correctly

and check for loose connections.

Rotor vane seized. Pour lubricating oil into air inlet

and operate trigger several times.

Spindle does not turn Motor vane is broken. Contact Draper Tools for advice.

Tool will not shut o ‘O’ ring throttle valve is broken

or dislodged.

Replace the ‘O’ ring - Contact

Draper Tools for advice.

8.2 Troubleshooting

WARNING! ALWAYS ensure that the tool is

disconnected from the air supply and that the

airsupplyisswitchedobeforeattemptingto

adjust or maintain this product.

8.1 General Maintenance

• Disconnect the air line and remove the air line

coupling or whip hose when storing the product.

• Wipe the grinder clean and remove any obstructions

from the front exhaust (1) before storage.

• Important: Lubricate the mechanism by pouring a few

drops of air tool oil into the air line coupling.

• ISO grade 22–32 (SAE grade 5W–15W) monograde oil

should be used in this air tool. During use, the oil must

be constantly supplied to the equipment to ensure

complete lubrication and optimum performance

• When not in use store in a dry clean place out of the

reach of children.

• Lubricate the gears regularly. Remove the grease

point screw (2) and insert grease into the gearbox void

using a grease gun.

8. Maintenance and Troubleshooting

– 13 –

9. Spares, Returns and Disposal

For spare parts, servicing, and repair and replacement

options, please contact the Draper Tools Product

Helpline for details of your nearest authorised agent.

Draper Tools will endeavour to hold any spare parts, if

applicable, for seven years from the date that it sells the

nal matching stock item.

Any servicing or repairs carried out by unauthorised

personnel or installation of spare parts not supplied by

Draper Tools will invalidate your warranty.

At the end of its working life, dispose of the product

responsibly and in line with local regulations. Recycle

where possible.

• DO NOT abandon it in the environment.

6 months from date of purchase -

Visit drapertools.com/warranty for full details.

Where the tool has been hired out the warranty period

is 90 days.

This warranty does not cover any other consumable

parts, normal wear & tear, damage, misuse, careless

or unsafe handling, alterations, accidents or repairs

attempted other than by authorised Draper warranty

repair agent.

10. Warranty

– 14 –

Average air consumption (cfm)

Average air consumption (L/min)

Air line size

Air inlet connector size

Net weight (air tool only)

European conformity

UK Conformity Assessed

Read the instruction manual

Wear safety glasses

Wear ear defenders

Wear protective gloves

Do not abandon in the environment

Warning! Risk of crushing

Warning!

Direction of rotation

Disc size

Speed (no load)

Operating air pressure (psi)

Operating air pressure (bar)

11. Explanation of Symbols

Notes

– 15 –

Draper Tools Europe B.V.

Oude Graaf 8

6002 NL

Weert

Netherlands

Contact Details

Draper Tools

Draper Tools Limited

Hursley Road

Chandler’s Ford

Eastleigh

Hampshire

SO53 1YF

Website: drapertools.com

Email: [email protected]

Product Helpline: +44 (0) 23 8049 4344

Telephone Sales Desk: +44 (0) 23 8049 4333

General Enquiries: +44 (0) 23 8026 6355

Please contact the Draper Tools Product Helpline for repair and servicing enquiries.

DRAPER 83953 Air Angle Grinder, 100mm

Product's Documents

Other

Specifications

DRAPER 83953 Questions and Answers