2 Pack Irwin 5026002 3/16 x 4 Rotary Masonry Drill Bit

2 Pack Irwin 5026002 3/16' x 4' Rotary Masonry Drill Bit: Home Improvement. 2 Pack Irwin 5026002 3/16" x 4" Rotary Masonry Drill Bit: Home Improvement. Diamond ground tip with more aggressive cutting angles for increase drilling speed 。 Changed back angle from 10º to 24º 。 More aggressive 26.0 mm flute pitch 。 Tested other carbide grades, current grade performed the best 。 Optimized flute geometry for fast dust removal 。 Irwin Rotary Masonry Drill Bit, Carbide Tip Rotary Masonry Drill Bit, Carbide Tip Features: Diamond ground tip with more aggressive cutting angles for increase drilling speed. Changed back angle from 0 º to 24 º. More aggressive 2.0 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. Slow spiral for quick and easy debris removal. Bits 7/" and larger have reduced shanks. 。。。

2 Pack Irwin 5026002 3/16 x 4 Rotary Masonry Drill Bit

2 Pack Irwin 5026002 3/16 x 4 Rotary Masonry Drill Bit,3/16 x 4 Rotary Masonry Drill Bit 2 Pack Irwin 5026002,2 Pack Irwin 5026002 3/16" x 4" Rotary Masonry Drill Bit: Home Improvement, Buy Now Guaranteed Satisfied Low price, good service Free shipping Delivery Official Online Site- Free Return. Drill Bit 2 Pack Irwin 5026002 3/16 x 4 Rotary Masonry.