Axminster Trade 105644, Оригинальное руководство пользователя

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Maintenance
21
Chisels and bits should be kept sharp for best performance; a
discoloured tip is usually a sign of excessive heat caused by a
blunt auger and/or chisel.
Bits are best sharpened with a small file and chisels with the
special mortice chisel sharpeners, see our catalogue or visit our
website at axminster.co.uk
Burrs can be removed from the sides of the chisel on a fine
oilstone or waterstone but great care must be taken not to
taper the chisel as this will cause the chisel to jam in the timber.
Chisel Abrasion
Look into the hollow of the chisel and check around the
corners for signs of dulled or rounded corners, see fig 39. If
there are any deviations in the chisel we recommend using
the multi- flute conical reamer sharpening set, code 700173
with the appropriate size pilot piece, just a few turns removes
a tiny amount of metal from the chisel’s internal bevel.
When abrasion occurs to the extent that the chisel bit tip
becomes thin and liable to break, it is advisable to replace it
with a new one.
Introduction
Fig 39
Square corner
Bevelled area
Sharpening Chisel Auger Bit
A well sharpened auger bit will cut more efficiently, passing
easily through the twist and being ejected through the slot in
the side of the chisel. Sharpen the spur on the auger bit using
a small square or flat file and sharpen the inside only, see figs
40-41.
WARNING!! DO NOT SHARPEN, STONE OR GRIND
THE BIT ON THE OUTSIDE WHICH WILL REDUCE ITS
DIAMETER CAUSING WOOD SHAVINGS TO BUILD UP
INSIDE THE CHISEL!
Fig 40
Fig 41
Inside of Spur
File