Triangular handle step drill bit Straight groove
The triangular shank step drill (straight groove type) is a specially designed drill with the following features: The shank is triangular in design, providing better clamping force and anti-rotation performance The cutter body has a straight groove chip groove design The multi-step cutting edge structure can complete multi-diameter hole processing at one time
ITEM NO:YDS-0147
Size
4-12mm; 4-20mm; 4-32mm; 4-39mm; 6-25mm;
