Page 100 - CITS - Fitter Trade Pactical - Volume - 2
P. 100
FITTER - CITS
Fig 8
Cooling a drill rapidly by quenching in cold water may cause cracking of the cutting edge.
Re-sharpening of very small drills requires great skill. They require proportionally less movement to produce the
cutting angles.
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CITS : CG & M - Fitter - Exercise 29 CITS : CG & M - Fitter - Exercise 29
