Diamond hole saw, diamond core drill bit, for tile/concrete/wall/glass, hand tool accessory, multifunctional concrete and marble drill bit (90mm)

General Description The 90 mm diamond hole saw is a versatile accessory designed for efficiently drilling materials such as tiles, concrete, walls, and glass. Thanks to its universal triangular drill shank, it offers excellent slip resistance and can withstand greater torsion, ensuring optimal performance during use. Technical Specifications Size: 90 mm Drill Bit Type: Diamond Compatible with: Bench drills, hand drills (not compatible with impact drills) Usage For efficient drilling, it is recommended to position the hole saw at a 45° angle and drill vertically. The drilling speed should be maintained between 800 and 1000 rpm, avoiding excessive speed. It is also advisable to add water during drilling to cool the holes and improve performance.