Accessories
15
Morticing Chisels Introduction
Sharpening chisels for morticing machines doesn’t get
much easier than this. Fit the multi- fl ute conical reamer
with the appropriate size pilot piece, just a few turns
removes a tiny amount of metal from the chisel’s internal
bevel. Using the fi ne diamond honing stone included with
the kit touches up the outer faces of the chisel by
removing any burrs thrown up by the reamer, it’s as
Types of Chisel
The Japanese pattern has a point on the
end of the bit and one cutting spur and
spiral for rapid chip clearance. The single
spur is easy to sharpen and cuts evenly
and fast, even in the hardest of timbers.
Whatever the choice, the chisels need to
be installed carefully if good results are
to be achieved.
Installation
The chisel needs to be installed square to
the back fence. The other important
adjustment is to get the correct clearance between the
cutting edge of the auger and the conical recess in the
base of the chisel; this will ensure that there is both
suffi cient support for the auger in the chisel and
adequate space for chip clearance. One convenient way
to achieve this is to install in position with a spacer (such
as a two pence coin) between the collar of the chisel and
the locating face on the machine, then bring the bit up so
that the cutting part is hard against the base of the chisel
and then tighten up the shank of the bit in the chuck. The
spacer is then removed, the chisel moved up to its correct
position and re-tightened.
Sharpening
Sharpening of the cutting spur is best achieved with a fl at
needle fi le whilst the chisels are best sharpened with the
special piloted reamers.
Morticing Chisel Sharpening Set
simple as that. A sharp chisel cuts cleaner and is far less
prone to burning and, of course, puts far less strain on
the morticing machine. It leaves the internal faces of the
mortice smoother and cleaner making for a better fi tting
joint. This Axminster mortice chisel sharpening kit will fi t
most Taiwanese and Japanese mortice chisels metric and
imperial sizes up to 12mm/1/2”. N.B. Touch up the chisels
auger at the same time using a simple triangular needle
or saw fi le.
Diamond Cone Mortice Chisel Sharpener
Sharpening a mortice chisel signifi cantly improves
performance. We can recommend this pair of specially
made diamond coated cones for most Taiwanese and
Japanese mortice chisels, and Veritas square hole
punches. A coarse grit cone gives an initial grind, followed
by a fi ner honing cone to create a sharp even edge.
Continues Over....
Code: 700173
Code: 502458
