Material : High Speed Steel 4241
Type : N Type 118 degree
Bit Diameter : 4.6mm/0.18"
Cutting Edge Length : 50mm/1.97"
Total Length : 79mm/3.11"
Main color: Silver
Package Content: 10pcs x Twist Drill Bit.
How to Use Twist
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.
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