Combination Drill & Taps
3Pcs Set HSS Step Drill Bit Kits 4-32mm Coated Hole Saw For Woodworking Metalworking Aluminum Steel
PRODUCT NAME:
Spiral/Straight Grooved Metal Steel Step Drill Bit Kit
QUANTITY :
3piece/set
SPECIFICATION:
Material: High speed steel
Shank: Triangular Shank
Total length: 100mm/96mm/72mm/65mm
Diameter: 15 steps(4mm-32mm), 9 steps(4mm-20mm), 5 steps(4mm-12mm).
One Step Depth: 4/7mm