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✎【Application】Perfectly suitable for drilling holes in a variety of materials including steel, brass, wood, plastic, thin iron, aluminum alloy, insulation boards, PVC sheet (thickness below 5MM), etc.
✎【Material】High-Speed Steel(HSS) combined with titanium coating, increasing wear-resistance and durability.
✎【Practical Design】Two-flute design, makes the material particles easier to escape, smooth cutting. 108°split point prevents walking and makes drilling stable and precise.
✎【Most Commonly-used Sizes】Bit #1 (5 steps): 4-12mm (4mm, 6mm, 8mm, 10mm, 12mm); Bit #2 (9 steps): 4-20mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm); Bit #3 (15 steps): 4-32mm (4mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 24mm, 26mm, 28mm,30mm,32mm)
✎【Package Included】3pcs HSS step drill bit (4-12/ 4-20/ 4-32mm ) with 1/4" Hex shank design, which is suitable for most kinds of home DIY power drills.
3 Pcs Step Drill Bit Set High Speed Steel Material: High Speed Steel with Titanium Coating Split Point: 118 Degree Shank Type: 1/4 inch Hex Shank