ITM Precision 13-Step Drill Bit

Ultra-Fine Hole Sizing for Delicate Sheet Materials

Technical Specifications

• Construction: M2 High-Speed Steel (HSS) with bright anti-corrosion finish

• Shank: 1/4" Hex (impact-ready for drills/drivers)

• Step Count: 13 micro-graduated sizes

• Step Range: 1/8" → 1/2" diameter (3.2mm → 12.7mm)

• Flute Design: Fast-spiral for clean chip ejection

• Point Type: Self-centering split point

Precision Step Progression

1. 1/8" (3.2mm)

2. 5/32" (4.0mm)

3. 3/16" (4.8mm)

4. 7/32" (5.6mm)

5. 1/4" (6.4mm)

6. 9/32" (7.1mm)

7. 5/16" (7.9mm)

8. 11/32" (8.7mm)

9. 3/8" (9.5mm)

10. 13/32" (10.3mm)

11. 7/16" (11.1mm)

12. 15/32" (11.9mm)

13. 1/2" (12.7mm)

Key Advantages

✔ Micro-Step Precision: 1/32" increments for exact hole sizing
✔ Delicate Material Specialist: Ideal for thin gauges (≤1/8")
✔ Impact-Ready: Hex shank withstands hammer drill use
✔ No Pilot Needed: Self-starting tip begins clean cuts
✔ Complete Protection: Includes durable storage case

Material Compatibility

• Metals:
  ✓ Stainless steel (including 304/316 grades)
  ✓ Aluminum/copper alloys
  ✓ Galvanized steel

• Non-Metals:
  ✓ Acrylic/PVC
  ✓ Carbon fiber laminates