drill bits & sets
irwin industrial tool . 19inch x 4inch rotary masonry drill bit 5026002
drill bit diamond ground tip with more aggressive cutting angles for increase drilling speed changed back angle from 10 to 24 more aggressive 26 0 mm 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 3 16 x 4 length 1 75 width 7 25 height 1 75 sku jnsn5850
irwin industrial