Step drill is hexagonal handle, prevent sliping. The saw drill is a round handle.
X shaped openings, drilling is not easy to slip. Higher precision, more sharp, burr-free drilling.
The gold is titanium coating, more wear and oxidation resistance, not rust.
The unique step structure, a drill can drill a variety of sizes of the aperture. You can deburring, chamfering, punching elliptical hole.
The hardness of the workpiece below the use of 25 ° below, such as iron, aluminum, PVC board, insulation board, wood, workpiece thickness 4mm.
Name:Hole Cutter Set
Size:
Step Drill Bit:4-12mm,4-20mm,4-32mm
Saw Drills:3mm,6mm,8mm
Material:High speed steel
colour:Golden
Package Contents:
3 x Step Drill Bit
3 x Saw Drills
