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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.
2.1mm bits can be used with power drill, with low speed and low drilling pressure.
Specification:
Material : High Speed Steel M35(HSS-M35) with 5% Co
Color:Champagne
Type : N Type 118 degree
Shank / Cutting Edge Diameter : 2.1mm
Cutting Edge Length : 24mm
Total Length : 48mm
Package Content: 5pcs x Twist Drill Bit
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