Irwin® Speedhammer Quad Drill Bit 12.0 x 310mm Vehicle Parts & Accessories > Garage Equipment & Tools > Air Conditioning Tools High quality cutting performance with

High quality cutting performance with an Oregon chain and bar

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Irwin® Speedhammer Quad Drill Bit 12.0 x 310mm Vehicle Parts & Accessories > Garage Equipment & Tools > Air Conditioning Tools High quality cutting performance withThe IRWIN Speedhammer Quad Drill Bit is ideal for drilling plug and anchor holes in masonry, all types of stone and concrete. Its 4 cutter geometry, drills a more concentric hole for the best fixing retention. The full head carbide tip offers the highest levels of drilling life and durability. A unique bonding system connects the solid carbide head to the 4 flute spiral. This design provides faster, more efficient dust removal. The specially