10pcs Titanium Masonry Drill Bit 7mm Concrete Drill Bit with Hex Shank 60 Grit Industrial heat shrink wrap sleeves

Industrial heat shrink wrap sleeves can also be used for wrapping of electronic components such as resistors and capacitors

Thread Diameter: 21

Please confirm whether the size and number of teeth are suitable for your equipment before purchasing

Shape: Square

Install Hole Diameter: 28mm / 1

10pcs Titanium Masonry Drill Bit 7mm Concrete Drill Bit with Hex Shank 60 Grit Industrial heat shrink wrap sleeves1. Made of quality carbide YG6X, the rust resistant treatment and reinforced head prevent the drill from cracking and provide longer service life. The oxygen nitriding treatment of the bit head improves the hardness of the bit 2. Concrete Drill Bits are designed with a U shaped chip discharge groove. This design ensures that all drill dust and chips are collected and released from the drill bit. 3. This 1 4 inch hex shank drill bits can be used on