The Irwin 15 Piece HSS Pro Combination Drill Bit Set is a versatile drilling solution designed for tradespeople and contractors working across multiple materials. Four masonry drill bits in 4mm, 5mm, 6mm, and 8mm sizes handle brick, concrete, and stone applications, whilst four wood drill bits in 3mm, 4mm, 6mm, and 8mm complete the collection for timber drilling tasks.
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