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POSiTiONiNG TABLE AND WORKPIECE (FIG, T, U)
Always place a piece of back up matedal (1) (wood,
plywood) on the table underneath the workpiece (2).
This will prevent splintering on the underside of the
workpiece as the drill bit breaks through.
To keep the workpiece from spnning out of control one
end of it must touch the left side (3) of the column (4) as
illustrated,or the fence provided should be used and the
workp_ece must be damped to the table
To prevent the workpiece or the backup material from
being torn from your hand while drilling, position them to
the left side of the column. If the workpi# or the backup
material are not long enough to reach the column, use
the fence provided and clamp them to the table. Failure
to do this could result in personal injury.
NOTE: For small pieces that cannot be'clamped to the
table, use a drill press vise (optional accessory) The vise
must be clamped or bolted to the table to avoid injury.
Fig, u
GENERAL DRiLLiNG GUIDEL|NES
NOTE: Use scrap mateda[ to get the feel of the machine
before attempting regular work.
DNiling speeds
Important drilling speed factors: _¢pe of material, hole size
type of drill bit or cutter, desired cut d,uaiits,.Remember, the
smaller the drill bit, the greater the required speed When
drilling soft materials, the speed required is greater than
that required for hard material&
Metal working
A metal workpiece should be clamped down securely.
Never hold it with your bare hands; the drill bit may seize
the workpteoe and cause you serious injury. The drill bit
may also break if the metal workpiece hits the column.
Clamp work firmly; any tilting, twisting, or shifting results
not only in a rough hole, but increases the potential of
drill bit breakage, If the metal piece is flat, place a pmece
of wood under it to prevent it from turning, If the piece is
an irregular shape and cannot be laid flat on the table if
should be securely blocked and clamped.
Wood working
Metal piercing twist ddll bits may be used on wood. but
brad point bits are preferable.
Do not use auger bits: they turn so rapidly that the
workpiece is lifted off the table and whirled around. To drill
completely through the workpiece, line the table up so the
bit will enter the center hole. Feed slowly when the bit is
about to cut through the wood to _)revent splintering.
Use a scrap piece of wood for a base block under the work',
it will help to reduce splintering and protect the point of
Lhebit.
Feeding
Pull down on the feed handles with enough force to allow
[he drill to cut. Feeding too rapidly might stall the motor.
cause the belt to slip, damage the workpiece, or break the
drill bit. Feeding too slowly will cause the drill bit to heat
up and burn the workpiece.
14
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