Makita Step Drill Bit 4 - 12mm Spiral Flute 1/4" Hex Shank Titanium Coated D-40179

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, 5, 6, 7, 8, 9, 10, 11 and 12mm
Total Steps: 9
Overall length: 65mm
RPM Range: 600-11300
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.