Applicable to: Bimetal hole saws, glass hole saws, etc., for hole saws with a shank diameter of not more than 10mm/0.39in and a shank length of not more than 20mm/0. 79 inches. Moderate size, suitable for 16mm/0.63inch-125mm/4.92 hole opener. Simple and quick operation: connect quickly and easily to increase the convenience of ;use. When working with an impact drill, simple tools can help you achieve better results. Easy to install and clean: silicone. Easy to install and clean, installation only takes a minute. The dust cover of the electric hammer can effectively prevent dust from spreading and inhaling into the lungs. No ceiling mark-S: When you use this drilling dust bucket, you don't have to worry about damaging the ceiling or wall materials, the dust bucket will collapse like a piston when sealed to the surface. The best part is that it does not leave marks on the ceiling. Stability: threaded bite, built-in bearing, simple assembly and disassembly, can be wall-mounted. Protect your health from dust. Description: 1. Suitable for: bimetal hole saws, glass hole saws and other hole saws whose handle diameter does not exceed 10mm/0.39in and the handle length exceeds 20mm/0 .79 inches. 2. Stable: threaded occlusion, built-in bearing, simple assembly and disassembly, and can be fixed on the wall. 3. Elastic: transparent and elastic, it can be close to the wall when used, effectively preventing dust from spreading everywhere. 4. Wide range of applications: moderate size, suitable for hole openers from 16mm/0.63in-125mm/4.92. 5. Note: Only the dust cover is included and the hole opener is not included. Specification: Product Name Product: Drill Dust Cover Color: White Material: Silicone Size: (Approx.) Inner Diameter: 125mm/4.92in, height: 70mm/2.76in, hole diameter: 10mm/0.39in Package includes: 1 piece * drill dust cover