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Irwin Tools Rotary Masonry Drill Bit 3/16"x4"
- Diamond ground tip with more aggressive cutting angles for increase drilling speed
- Changed back angle from 10 to 24
- More aggressive 26.0 millimeter flute pitch
- Tested other carbide grades, current grade performed the best
- Optimized flute geometry for fast dust removal
- Large carbide tip for increased life
- For drilling masonry blocks and bricks
Irwin Tools Rotary Masonry Drill Bit 3/16"x4"
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