Hammer Drills, Chisels, Jackhammers -Glass Hole Drill Bit Opener and Water Hose Fitting Collet Chuck Size 3 Highlights Generic Brand Glass Hole Drill Bit Opener and Water Hose Fitting Collet Chuck Size 3 Description : Used to connect the glass opener drill bit and water pipe Made of premium tungsten steel, high quality, durable Easy to install and use Useful 100% new Specification: Size #1: Diameter of the stem: Approx.6mm/0.24 inch Clamp diameter: Approx.10mm/0.39 inch Water inlet diameter: Approx.8mm/0.31 inch Size #2: Stem diameter: about 10mm Clamp diameter: Approx.10mm/0.39 inch Water Inlet Diameter: Approx.8mm/0.31 inch #3 Size: Stem Diameter: Approx.6mm/0.24 inch Clamp Diameter: Approx.6mm/0.24 inch Inlet Diameter of water: Approx.8mm / 0.31 inch Material: tungsten steel Color: silver Package includes: 1 piece connector