1. Steady clamp, high degree of concentricity, closing tight, solid and easy to smooth.
2. Semi-automatic hand drill thickening nut, strong and not easy to crack.
3. It is precise, accurate and efficient and tightly holds bit, can Clamp/Holder 0.8-3.0mm drill bits.
4. Screw and half mechanical design, positioning accuracy, save time and effort.
5. Can be used for wood, plastic, rubber, soft metal punching, , bone, etc

Specification:
Features:
Steady clamp, high degree of concentricity, closing tight, solid and easy to smooth.
Semi-automatic hand drill thickening nut, strong and not easy to crack.
It is precise, accurate and efficient and tightly holds bit, can Clamp/Holder 0.8-3.0mm drill bits.
Screw and half mechanical design, positioning accuracy, save time and effort.
Can be used for wood, plastic, rubber, soft metal punching, , bone, etc.
Specification:
Material: Brass
Weight: 63g/2.2oz
Color: Silver
Length: 12.1cm/4.8inch
Chuck Size: 1.2 - 2.2mm
Bits Specification: 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, 0.65mm, 0.7mm, 0.75mm, 0.8mm, 0.85mm, 0.9mm, 0.95mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm
Package List:
1 x Drill
20 x Drill Bits