13/16" - 21mm Bi-Metal Holesaw AB2838-6 They are placed in a

They are placed in a collet or chuck

Fits mini-split systems up to 44

as the oil may give the timber a white chalky appearance

Supplied with 1 X BSL3640MVT and 1 X UC36YSL2

13/16" - 21mm Bi-Metal Holesaw AB2838-6 They are placed in aStarrett Holesaws. Constant Pitch up to 40mm Dual Pitch Professional Hole Saws 41mm and over are the latest development in multi use bi metal hole saws. Featuring the smooth cutting action of our constant pitch hole saw, combined with aggressive material penetration and swarf clearance, Dual Pitch Professional will cut equally well on thin and thicker gauge materials. This removes the need to carry a constant and a variable pitch hole saw. Advantages: