Starrett KFC07021 7 Pcs Bi-Metal Fast Cut Plumber\'s Hole Saw Kit 19-57mm This Starrett KFC07021 7 Pcs Bi-Metal Fast Cut Plumber\'s Hole Saw Kit 19-57mm combines a new tooth material with extra cobalt, for enhanced heat and wear resistance, with a new 5.5 TPI positive rake tooth design. This provides a smoother, 30% faster cut when compared to Starrett\'s previous Constant Pitch Hole Saw. Specifically suited to cut stainless steel and mild steel sheet, the Fast Cut saw will also cut through metals, wood, cast iron, plastic, and plaster. CONTENTS 19mm 22mm 29mm 38mm 44mm 51mm 57mm A1 Arbor A10 Arbor FEATURES Contains popular holesaw sizes Enhanced heat & wear resistance Improved longevity New tooth design Smooth & fast cut Enclosed in a convenient EVA carrying case. SPECIFICATION Pack Qty: 7 Pcs Arbors: 2 Weight: 1.16kg Package Dimensions (LxWxH): 265 x 247 x 85mm Cat. No.: KFC07021 Item No.: AX5412