TALOOS 4" Wet Drill Core Bits for Concrete and Hard Masonry, Diamond Core Drill Bits for Marble, Granite, Rocks and Bricks | 16.15" Drilling Depth, 10mm Segment Height, 1-1/4"-7 Arbor | Wet Only
- ... 【PREMIUM QUALITY】The drill body of this wet core drill is composed of 20 steel, and the drill tooth part is composed of Cobalt Powder & D92 Diamond, which can ensure a longer coring life. Better details and surface treatment technology than similar products. You can use it to drill concrete, brick, rock, marble, hard masonry or other materials in conditions such as installing air conditioners, plumbing, stair railings, highways and airports..
- 【100% SATISFACTION SERVICE】We have a professional drilling equipment research team, if you have any questions about this core drill bits or any dissatisfaction, please email us and we will help you solve it perfectly..