Irwin 1877240 Speedbor Max Speed Bit Set, Tri-Flute, 5 Pieces Basins Low pressure injection of cracks

Low pressure injection of cracks in structural concrete

Fits all SDS plus rotary hammers

It incorporates a unique interaction between drill bit and extractor resulting in maximum impact and break out ability

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Irwin 1877240 Speedbor Max Speed Bit Set, Tri-Flute, 5 Pieces Basins Low pressure injection of cracksHighlights: Series: MAX Speed Type: Clam Number Of Pieces: 5 Specifications: 4" Hex Shank, Screw Tip Suitable for Use With: 1 4" Quick Change Chucks Includes: 1 2", 5 8", 3 4", 7 8" and 1" Drill Bit Size Range: 1 2" 1" The fastest Speedbor ever Tri flute design for faster chip ejection Cutting spurs have 3 cutting edges for added durability Full screw tip allows bit to self feed Grooved hex shank prevents slipping in drill chuck or bit extension