Suitable for: bi-metal hole saws, glass hole saws and other hole saws where the handle diameter does not exceed 10 mm and the handle length exceeds 20 mm. Easy and quick to use : Attaches quickly and easily for added convenience. Simple tools can help you get better when working with a hammer drill. Stable: threaded bite, built-in bearing, simple assembly and disassembly, can be wall mounted. Elastic: transparent and elastic, it can be close to the wall when using, effectively preventing dust from spreading everywhere. Wide range of applications: medium size, suitable for 16 hole openers mm to 125mm. Note: Only the dust cover is included, and the hole opener is not included. Product Description Description: 1 . Suitable for: bi-metal hole saws, glass hole saws and other hole saws whose handle diameter is Not to exceed 10mm and handle length exceeds 20mm. 2. Stable: threaded occlusion, built-in bearing, simple assembly and disassembly, and can be wall-mounted. 3. Elastic: transparent and elastic, it can be close to the wall when using, effectively preventing dust from spreading everywhere. 4. Wide range of applications: medium size, suitable for hole openers from 16mm to 125mm. 5. Note: Only the dust cover is included, and the hole opener is not included. Features: Product Name: Drill Dust Cover. Color: White. Material: Silicone. Size: (approx) Inner Diameter: 125mm, Height: 70mm, Hole Diameter: 10 mm. Package includes: 1 drill dust cover.