Chisels — application of a diamond-pointed chisel A diamond-pointed chisel is primarily intended for which type of work during fitting or chipping operations?

Introduction / Context:
Hand chisels are shaped to suit specific tasks. Selecting the correct chisel improves finish and reduces effort. The diamond-pointed chisel has a unique tip geometry that directs cutting forces into a narrow V-shaped path.

Given Data / Assumptions:

• Standard chisel set: flat, cross-cut, round-nose, and diamond-pointed.
• Work materials: mild steel or cast iron in fitting shop practice.
• Objective: produce or clean internal corners or V-grooves.

Concept / Approach:
The diamond-pointed chisel has a pyramidal point ground to create two cutting edges meeting at a central ridge. This shape is ideal for V-grooves, sharp corners, and channels where a flat or cross-cut chisel cannot access. For keyways and straight grooves, a cape (cross-cut) chisel is preferred; for flat surfaces, a flat chisel is used; for semicircular channels, a round-nose chisel is appropriate.

Step-by-Step Solution:
Match chisel geometry to task geometry.Diamond-pointed tip naturally creates V-shaped cuts.Select “V-shaped grooves”.

Verification / Alternative check:
Workshop manuals depict the diamond-point chisel cleaning corners and producing V-shaped notches.

Why Other Options Are Wrong:

• Flat surfaces: require a flat chisel.
• Grooves / keyways: generally require a cape chisel.
• Round holes: drills/reamers or round-nose chisel for channels, not the diamond point.

Common Pitfalls:
Using a diamond-point for wide material removal leads to chatter and poor surface finish. It is a specialty tool for corners and V-grooves.

Final Answer:
V-shaped grooves