Industrial-Grade Cobalt Step Drill Bits
The Industrial-Grade Cobalt Step Drill Bits lets you drill nearly any size of hole with ease! Multiple sized drill bits integrated into one, saving you a lot of time while working, meeting all your needs, compact and easy to carry!The 1/4 inch hex shank fits into all power tools more easily and securely, specially for locking into quick change chuck!
Convenient & Accurate! on each bit offer superb convenience and accuracy, ideal for drilling large and small-diameter holes in stainless steel, steel, metal and plastic. With these drill bits you don't need to hire any workers to drill for you!
Easy and smooth drilling: Each step is clearly labelled with the depth diameter in steps
Two-Flute Design: 2 flutes form helps clear chips and debris away from the bit, decreasing friction and heat for a faster, cooler drilling process.
Built to last: Made of high speed steel and titanium coated for added durability and bit life.The cutting edge is hardened and honed for sharpness, chatter-free design with staggered cutting teeth ensure the precise countersinking and hole smooth clean.
Quick Change: 1/4 inch hex shank fits into all power tools more easily and securely, specially for locking into quick change chuck.
Multiple in one: Multiple sized drill bits integrated into one, saving you a lot of time while working
Wide Application: Works on plastic ,wood and most metals, including steel, brass, aluminum and copper.
- Meet Your Demands: Perfect for home DIY, and general building/ engineering use.
- Material: High speed steel
- Finish: Titanium
- Shaft Type: Hexagonal shaft
- 4-12mm Length: Approximately 6.7cm / 2.64"
- 4-20mm Length: Approximately 7.4cm / 2.91"
- 4-32mm Length: Approximately 10.2cm / 4.02"
- 4-12mm: 4mm 6mm 8mm 10mm 12mm
- 4-20mm: 4mm 4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm
- 4-32mm: 4mm 6mm 8mm 10mm 12mm 14mm 16mm 18mm 20mm 22mm 24mm 26mm 28mm 30mm 32mm
- 1 x 4-12mm Step drill or
- 1 x 4-20mm Step drill or
- 1 x 4-32mm Step drill or
- 1 x Set of 3