Heavy Duty Step Drill Bit Set Four Piece For General Purpose Drilling Do It All DIY Pro Grade With Self Start Tips And Non Slip Shanks Laser Etched Size Marks For Quick Accurate Drilling Every Time
✔️ 4-piece Unibit set with SpeedPoint tips and laser size marks
This heavy-duty step drill bit set is designed to enlarge holes cleanly in sheet metal, aluminum, plastics, plexiglass, and wood. It’s ideal for metal fabrication, electrical work, and DIY projects.
✅ Single-flute cutting edges for precise, clean holes in a range of materials
✅ 3-flatted shanks prevent slipping in the drill chuck
✅ Non-skid self-starting tips eliminate skidding and the need for center punching
✅ Laser-etched sizes inside the flute for quick, accurate drilling
✅ Hex shank provides a secure grip in the drill chuck
✅ Includes Unibit #1 with 13 hole sizes (1/8" to 1/2" by 32nds), Unibit #2 with 6 hole sizes (3/16" to 1/2" by 16ths for deeper steps), Unibit #4 with 12 hole sizes (3/16" to 7/8" by 16ths), and Unibit #21 with 10 hole sizes (13/16" to 1-3/8" for hole enlarging)
💡 What is a step drill bit set used for in metalworking and DIY projects, and how does the SpeedPoint tip help? This handy tool enlarges holes cleanly across metal, plastic, and wood.
- Practical applications: drilling true, round holes with a smooth finish
- Handy for enlarging existing holes and deburring in one step
- Works with standard drill chucks and hex shanks
- Use cutting oil on metal to reduce heat and wear