10pcs 2.8mm Twist Drill High Speed Steel Bit HSS-4241

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.

2.8mm 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 : 2.8mm

Cutting Edge Length : 40mm

Total Length : 61mm

Package Content: 10pcs x Twist Drill Bit