For soft materials such as bronze, brass, soft steel, cast iron, heavy angles etc. use a 1.8 mm pitch blade.
55) The suitable pitch of hacksaw blade for cutting solid brass is
Related Cutting Tools MCQ - Machinist(Set-1) with Answers
The taper shank drill should be removed from the machine spindle by means of tool called drill drift.
The drill chucks are held on the machine spindle by means of an arbor fitted on the drill chuck.
Smaller than the machine spindle
Drill sleeve is used when the taper shank of the drill is smaller than the machine spindle.