HANGZHOU FANXI TOOLS CO., LTD.
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Main Technical Conditions Of Twist Drill (2)
1). DimensionsDrill diameterThe values
indicated in the relevant dimensional standards
apply in respect of the diameter of Twist
Drills.Test p
The twist drill is the most common type of drill. The shank of the drill is held by the machine tool, which in turn imparts a rotary motion. This shank may be straight or tapered. The body of the drill is typically made up of two spiral grooves known as flutes, which are defined by a helix angle tha
