12-18X TCT Core Drill Set Concrete Brick Cement Wall Drill Bit Hole Saw Cutter
1 x 110mm Shank. 1 x 350mm Shank. 6 x drill bits (35mm, 40mm, 50mm, 65mm, 80mm, 110mm). 35 mm-45 mm box type hole saws are used for drilling water and heating pipes. 6 x Core Drill Bits(35mm, 40mm, 50mm, 65mm, 80mm, 110mm).