Question
Download Solution PDFIdentify the hammer shown in the following figure:
This question was previously asked in
ISRO SAC Technician B Fitter 21 Oct 2018 Official Paper
Answer (Detailed Solution Below)
Option 3 : Ball pein hammer
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ISRO Technician B: Fitter Full Test 1
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Detailed Solution
Download Solution PDFExplanation:
Hammers:
- An engineer's hammer is a hand tool used for striking purposes while punching, bending, straightening, chipping, forging, or riveting.
- Hammer is made of drop-forged carbon steel, while the wooden handle must be capable of absorbing shock.
Specification:
- An engineer's hammers are specified by their weight and the shape of the pein.
- Their weight varies from 125 grams to 750 grams.
- The weight of an engineer's hammer, used for marking purposes, is 250 grams.
Major parts of a hammer:
Face:
- The face is the striking portion. A slight convexity is given to it to avoid digging off the edge. It is used for striking while chipping, bending, punching, etc.
Pein:
- The pein is the other end of the head.
- It is used for shaping and forming work like riveting and bending.
- The pein is of different shapes such as:
- ball pein
- cross pein
- straight pein
Cheek:
- The cheek is the middle portion of the hammerhead.
- The weight of the hammer is stamped here.
- This portion of the hammerhead is left soft.
Eyehole:
- The eyehole is meant for fixing the handle. It is shaped to fit the handle rigidly. The wedges fix the handle in the eyehole.
Last updated on May 28, 2025
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