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Do not twist the knife (See Figure 3). (Retain the Stage 1 cover as a ready reminder of the
sharpening steps.) Move the blade down in the slot until you feel it contact the diamond disk.
Pull it towards you lifting the handle slightly as you approach the tip. This will give you a feel for
the spring tension.
Remove the knife and press the Power Switch. A red “indicator” on the switch appears when
this switch is turned “ON”.
Stage 1: Start in Stage 1. Pull the knife once through the left slot of Stage 1 (Figure 3) by
slipping the blade between the left angle guide and the polymeric spring while pulling the blade
toward you and simultaneously moving the blade downward in the slot until it engages the
diamond coated disk. You will hear it make contact with the disk. Insert the blade as close as
possible to its bolster or handle and pull it at a steady rate until it exits the slot. If the blade is
curved, lift the handle slightly as you sharpen near the tip of the knife, keeping the blade edge
approximately parallel to the table. Sharpen the entire blade length. For an eight (8) inch blade
each pull should take about 4 seconds. Pull shorter blades through in 2-3 seconds and longer
blades in 6 seconds. Next, repeat with one full length pull in the right slot of Stage 1.
Note: Each time you insert the blade you should simultaneously pull the blade toward you.
Never push the blade away from you. Apply just enough downward pressure to make contact
with the disk – added pressure does not modify or speed the sharpening process. Make an
equal number of pulls alternating in the left and right slots in order to keep the edge facets
symmetrical.
Except when you are sharpening for the first time in Stage 1 or if the blade is very dull, you
will find that one or two pairs of alternating pulls are adequate. Then after checking for a burr
on the edge as described below proceed to Stage 3. Stage 1 sharpening is considered complete
when a burr exists along one side of the edge.
Checking for the Burr After completing stage 1 you should confirm that a burr (see Figure
4) exists along one side of the edge. To check for the burr, move your forefinger carefully across
and away from the edge as shown in the Figures 4 and 5 (on page 7).
(Do not move your finger along the edge – to avoid cutting your finger). If the last pull was in
the right slot of Stage 1, the burr will appear only on the right side of the blade (as you hold it)
and vise versa. The burr, when present, feels like a rough and bent extension of the edge; the op-
posite side of the edge feels very smooth by comparison. If a burr exists, proceed to Stage 3.
If no burr exists, make one (1) additional pull in the left and right slots of Stage 1 before
proceeding to Stage 3. Slower pulls will help develop the burr. Confirm the presence of the burr
and only then proceed to Stage 3.
Figure 3. Stage 1. Inserting blade in slot between guide
and elastomeric spring. Alternate individual pulls in right
and left slots.
Burr
Figure 4. Develop a distinct burr along knife edge before
stropping in Stage 3.
6
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