Specification: Material: Alumina Number: 384 Color: As Shown Feature: Easy To Use: 100% Brand, High Quality. The Appearance Is Small And Easy To Use. The Installation Is Simple, The Self-expanding Rubber Drummandorel Can Clamp The Sanding Belt Tightly To Create A Fine Artwork. Compatible With Common Standard Size Rotating Tools. [grinding Tools] Generally Can Be Used For Grinding, Grinding, Grinding, Cutting, Punching, Etc. [high-quality Material] Made Of Steel Copper Sand, The Product Quality Is Guaranteed. [applicable To Various Occasions] These Drumstick Sets Are Suitable For Ceramics, Stone, Glass, Wood And Other Industrial Carving, Etching, Grinding And Other Places. [caution] :: If The Belt Falls Off, Please Make Sure That The Roller Is Tight. If You Have Any Questions, Please Feel Free To Contact Us Via Email.[Product Specifications] Product Type: Sand Hammer Double Wrench, [material]: Alumina, [size]: [wheel]: 1/2 Inch#3/8 Inch# 1/4 Inch[sand Drum]: 1/2 Inch #3/8 Inches# 1/4 Inches (about 1.26 Cm)# 1/4 Inches (about 10.6 Cm). Granularity: 80#120#240; [packing List]: 300 Sandstones, 6 Sand Drums, 1 Double Wrench. If You Have Any Questions, Please Feel Free To Contact The Staff Via Email. Easy To Use: 100% Brand New And High Quality. The Appearance Is Small And Easy To Use. The Installation Is Simple. The Self-expanding Rubber Drummandorel Can Clamp The Sanding Belt Tightly And Keep The Sandpaper Cover With Fine Art. Compatible With Common Standard Size Rotating Tools. [Grinding Tool] Generally, It Can Be Used For Grinding, Grinding, Grinding, Cutting, Punching, Etc. [High-quality Material] It Is Made Of Steel Copper Sand To Ensure Product Quality. Suitable For Various Occasions: These Drumstick Sets Are Suitable For Ceramic, Stone, Glass, Wood And Other Industrial Carving, Etching, Grindin