USE/CARE OF HANDTOOLS & MEASURING TOOLS - OD1621 - LESSON 2/TASK 2
(2) Machinist's Chisels.
(a) Selecting a Chisel. Best results will be obtained if a chisel
is used that was designed for the particular job to be done.
(b) Chipping. Chipping is a term applied to the removal of metal
with the cold chisel and hammer. The degree of accuracy required varies.
1 Secure the work in a vise, with a block under the work to
prevent it from slipping down.
2 Place a canvas chipping guard in front of the work to keep
flying chips from hitting men working in front of you.
Wear goggles to
protect your eyes.
3 For most ordinary chipping with a 3/4 inch chisel, use a 1
Use a lighter hammer for a smaller chisel.
Always use a
4 Grasp the chisel with one hand, holding the cutting edge to
the work and striking the other end of the chisel with the hammer, keeping
your eyes on the cutting edge to watch the progress of the work. The bevel
side of the chisel is the guiding surface and is held at a very slight angle
with the finished part of the work the cutting edge is touching. Raising or
lowering the shank of the