Q71
The width of cutting edge of a parting off tool varies from
A.
3 to 12 mm
AnswerB.
5 to 20 mm
C.
8 to 30 mm
D.
15 to 40 mm
Answer: Option A
Solution
Answer: Option A
Solution:
The width of the cutting edge of a parting-off tool depends on the type of material being cut and the rigidity required for the operation. A typical range for parting-off tools used in lathe operations falls between 5 mm to 20 mm, which provides a balance between strength and precision.
Narrower tools (closer to 5 mm) are used for smaller workpieces and precision cuts, while wider tools (up to 20 mm) are preferred for heavier and tougher materials to reduce deflection and ensure stability.