Makita Step Drill Bit 4 - 20mm Spiral Flute 1/4" Hex Shank Titanium Coated D-40185

Recommended For - Plastic, Non-Ferrous Metal, Sheet Steel, Alloy Steel & Cast Iron

2x Faster than straight flute with less vibration

Spiral Step Drill Bits provide the following benefits:
• Faster Drilling
• Longer Lifetime
• Smoother Cutting
• Less Vibration

Step sizes: 4, 6, 8, 10, 12, 14, 16, 18 and 20mm
Total Steps: 9
Overall length: 75mm
RPM Range: 400-960
Flute Type: Spiral
Shank type: 1/4" Hex

NOTE: 1/4” Hex Drive bits are not to be used on Impact Drivers as the cutting edge will be damaged.