big diameter core bits, suitable for professional drilling machines, good for drilling concrete, hard tiles.
big diameter core bits, suitable for professional drilling machines, good for drilling concrete, hard tiles.
specification, technical processing, designing regulation, producing capactiy
OSA certified
ø38,42,52,56,63,65,68,72,76,78,82,86,92,102,108,112,112,114,117,120,122,127,132,138,142,152,162,172,182,186,200,226,250,254,305,356mm