Starrett KDC05021 7 Pcs Deep Cut Bi Metal Electrician\'s Hole Saw Kit 20-51mm This Starrett KDC05021 Hole Saw Kit consists of 5x Starrett\'s deep cutting bi-metal hole saws, in sizes 20mm, 25mm, 29mm, 44mm and 51mm, plus 2x arbors. These feature a new tooth material for enhanced heat and wear resistance, as well as improved longevity. CONTENTS 1x 20mm Hole Saw 1x 25mm Hole Saw 1x 29mm Hole Saw 1x 44mm Hole Saw 1x 51mm Hole Saw 2x Arbors 1x Carry Case FEATURES New tooth material for enhanced heat and wear resistance, improving product longevity Tried and tested tooth design Increased hole saw depth Aggressive material penetration Included carry case SPECIFICATION Pack Qty: x7 Pcs Arbors: 2 Cat. No.: KDC05021