This 5.5mm diameter, 160mm length Irwin Masonry Drill Bit provides precise 5.5mm sizing with the extended reach of 160mm, making it ideal for deeper drilling applications requiring this specific diameter. Engineered for fast and efficient drilling in brickwork, concrete and breeze block with cordless drills, this bit drills up to 60% faster than competitive drill bits. The single flute design ensures faster dust removal for increased drilling speed even at extended depths, whilst the unique pres
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