1.8 mm Twist Drill Bit HSS 4241 for Steel,Aluminum Alloy 10pcs

Description:

Material : High Speed Steel 4241

Type : N Type 118 degree

Bit Diameter : 1.8mm/0.07"

Cutting Edge Length : 22mm/0.87"

Total Length : 45mm/1.77"

Weight: 10g

Main color: Silver

HRC: 62-63

Package Content: 10pcs 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.

Note

Mini twist drill bit can NOT be used in the impact drill.

To avoid drill bit break, 1.8mm bits should be used with pin vise.