Some Drills Have Straight Shanks And Some Have Tapered Shank. Why ?

1.	Some Drills Have Straight Shanks And Some Have Tapered Shank. Why ?
Answer» Small DRILLS (less than 12 mm diameter) are provided with straight SHANKS which can be held in DHIREN chucks. BIGGER drills have tapered shank using self holding Morse tapers which PREVENT gravitational fall of drill. Small drills (less than 12 mm diameter) are provided with straight shanks which can be held in Dhiren chucks. Bigger drills have tapered shank using self holding Morse tapers which prevent gravitational fall of drill.

Answer»

Small DRILLS (less than 12 mm diameter) are provided with straight SHANKS which can be held in DHIREN chucks. BIGGER drills have tapered shank using self holding Morse tapers which PREVENT gravitational fall of drill.

Small drills (less than 12 mm diameter) are provided with straight shanks which can be held in Dhiren chucks. Bigger drills have tapered shank using self holding Morse tapers which prevent gravitational fall of drill.

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Some Drills Have Straight Shanks And Some Have Tapered Shank. Why ?

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