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.
2.5mm bits can be used with power drill, with low speed and low drilling pressure.

Specification:

Material : High Speed Steel M35(HSS-M35) with CO
Surface Treatment : Titanium Coated
Color:Champagne
Type : N Type 135 dgree
Shank / Cutting Edge Diameter : 2.5mm
Cutting Edge Length : 28mm
Total Length : 56mm
Package Content: 3pcs x Twist Drill Bit