2) Drill chucks are held on the machine spindle by means of
Answer is:
Arbor
Related Cutting tools and Fasteners MCQ - Electrician (Set-1) with Answers
Answer is:
8 to 12 Degree
Explanation:
The lip clearance angle of twist drill for general purpose should be 8 Degree to 12 Degree.
Answer is:
soluble oil
Explanation:
Soluble oil are made from mineral oils with emulsifying material added to make for mixing with water. Soluble oil is diluted with water to form an emulsion. The water cools whilst the oil lubricates. The extent of dilution depends upon the type of operation.
