Feature

●Made of high speed steel material,durable to use
●Spiral screw is suitable for cutting high toughness material
●Easy to drill the bottom


Description

7 different sizes to meet your different needs
Specifications:
M3 diameter:0.5mm
M4 diameter:0.7mm
M5 diameter:0.8mm
M6 diameter:1.0mm
M8 diameter:1.25mm
M10 diameter:1.5mm
M12 diameter:1.75mm