Twist Drill Bit is a tool that used to process holes in Firmmaterials.
It's the most widely used tool in the hole machining tool,and named for the spiral shape of its fluted grooves.

Specifications:
Material: High Speed Steel 4241 (HSS4241)
Material: High Speed Steel with Titanium coated
sizes: 1mm, 1.5mm, 2mm, 2.5mm, 3mm
Weight: 53 g
Application: metal, wood, plastic, PVC and other handicraft industry drilling, high precision, improve efficiency.
Working principle: the round hole of the workpiece is drilled through the rotary cutting of its relative fixed axis.

Package Included:
10 x 1.0mm Drill Bit
10 x 1.5mm Drill Bit
10 x 2.0mm Drill Bit
10 x 2.5mm Drill Bit
10 x 3.0mm Drill Bit
Total Quantity: 50pcs

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：
1.Mini twist drill bit can NOT be used in the impact drill.
2.To avoid drill bit break, 1mm and 1.5mm bits should be used with pin vise.
3.2mm、2.5mm、3mm bits can be used with power drill, with low speed and low drilling pressure.
4.This drill bit set can NOT be used in the impact drill.