2mm cutting depth, accurate, fast and clean holes Replaceable pilot drill, fits standard chucks, complete with Arbor Lasts 10 x longer than standard Bi-Metal holesaw when cutting sheet metal Fast and clean cutting, suitable for drilling sheet metal, steel pipe, stainless steel, aluminium and fibreglass reinforced synthetic materials Available in sizes from 15.0mm - 92.0mm 11 piece kit available, 16 - 50mm