This 4.5mm diameter, 85mm length Irwin Masonry Drill Bit is perfectly sized for medium fixing applications in brickwork, concrete and breeze block. Engineered for fast and efficient drilling with cordless drills, this bit drills up to 60% faster than competitive drill bits whilst maintaining the same high durability that trade professionals demand. The single flute design ensures faster dust removal for increased drilling speed, whilst the unique pressed diamond-ground carbide tip allows for agg
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