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3mm Twist Drill High Speed Steel Bit HSS-4241 20pcs
Description:
How to Use Twist Drill Bits
Ensure the left and right cutting edges of the drill are symmetrical when drilling.
Observe the uniformity of the spark while drilling, adjust the pressure in time, and pay attention to the cooling of the bit.
Note
Mini twist drill bit can NOT be used in the impact drill.
3mm bits can be used with power drill, with low speed and low drilling pressure.
Specifications:
Material : High Speed Steel 4241
Type : N Type 118 degree
Shank / Cutting Edge Diameter : 3mm
Cutting Edge Length :38mm
Total Length : 61mm
Package Content: 20pcs x Twist Drill Bit