Professional Stepped Drill DIA 4 12mm 4 20mm 4 32mm HSS Spiral Groove Titanium Cone Drill
1pcs 4-12/4-20/4-32mm HSS Titanium Spiral Grooved Step Drill Bit Triangle Shank Step Cone Drills for Metal PVC Board Step Drills came very fast.I looks so good.I ll use it for a while and lets see the performance . Material: High Speed Steel Use: Metal Drilling length: As description Model Number: 15060039001/002/003 Type: Core Drill Bit is_customized: Yes DIY Supplies: Metalworking Brand Name: KEELRONL Quantity: 1pcs Surface: Titanium coated Handle Shape: Triangle shank Thickness of work-pieces/Height of step: 5mm Diameter of handle: 6mm, 8mm, 10mm Size of steps: 5steps/4-12mm; 9steps/4-20mm; 15steps/4-32mm Color: As the picture shows Material: High-speed steel 4241 Item name: Spiral Grooved Step Drill Bit Used for: for Metal PVC Board Step Drills Note: 3Pcs/Set 4-12mm, 4-20mm, 4-32mm Step Drills; HSS Nitriding Black Stepped Drills: Triangle Shank Straight Groove: 1pc , 3pcs Hex Shank Spiral Groove: 1pc , 3pcs Hex Shank Straight ...