Features 1. Suitable for: bimetal hole saws, glass hole saws and other hole saws whose handle diameter does not exceed 10mm/0.39 inches and the handle length exceeds 20mm/0.79 inches. 2. Stable: threaded occlusion, embedded bearing, simple assembly and disassembly, and can be attached to 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 16mm/0.63 inch-125mm/4.92 hole openers. 5. Easily attach this saw dust collector that fits seamlessly between cutting tools and the drill"s chuck. The drillers dust bowl forms a seal to the surface of the material and allows you to encapsulate all debris. Specification Material: Iron, ABS Color: White Size: 125 mm, 160 mm Weight: 78 g, 97 g Package Include: 1 Drill Dust Cover