Irwin® Speedhammer Quad Drill Bit 7.0 x 160mm 28 C4-D resistance to most common chemicals

resistance to most common chemicals and can be overpainted when cured

7665 to spread the load and help prevent it sinking under load on soft ground

overload protection and CDC-electronic feedback control

maximum load) and at high ambient temperatures:

Irwin® Speedhammer Quad Drill Bit 7.0 x 160mm 28 C4-D resistance to most common chemicalsThe 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