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uxcell 7.1mm Twist Drill High Speed for Super sale Japan's largest assortment period limited Bit Steel HSS-4241

uxcell 7.1mm Twist Drill High Speed Steel Bit HSS-4241 for Steel

$8

uxcell 7.1mm Twist Drill High Speed Steel Bit HSS-4241 for Steel

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Product description

Description:

Material : High Speed Steel 4241
Type : N Type 118 degree
Bit Diameter : 7.1mm/0.28"
Cutting Edge Length : 73mm/2.87"
Total Length : 109mm/4.29"
Weight: 106g
Main color: Silver
HRC: 62-63
Package Content: 5pcs x Twist Drill Bit.

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.

uxcell 7.1mm Twist Drill High Speed Steel Bit HSS-4241 for Steel


 

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