Specification Brand : Aexit BulletPoint1 : Cutting Diameter: 20mm/0.8''; Product Name: Glass Hole Saw BulletPoint2 : Material: Metal,Diamond Particles; Package Content: 2pcs x Glass Hole Saw BulletPoint3 : Weight: 45g; Shank Size: 7 x 25mm/0.28" x 1''(D*L) BulletPoint4 : Total Length: 56mm/2.2'' BulletPoint5 : Main Color: Silver Tone Color : Silver CompatibleMaterial : Metal CompatibleMaterial1 : Glass CompatibleMaterial2 : Ceramic CompatibleMaterial3 : Marble ItemName : Aexit 20mm Cutting Hole Saws & Accessories Dia Diamond Coated Glass Tile Drill Bit Hole Hole Saw Sets Saws 2pcs ItemTypeKeyword : hole-saw-sets Manufacturer : Aexit Material : Glass,Metal ModelNumber : modle PartNumber : f190413ae053250 ProductDescription : Features diamond coating on this hole saw give good performance and longer life. Excellent for making and accurate hole on glass and tile. Works better with a electric drill(here is not included). ProductSiteLaunchDate : 2018-09-28T02:32:49.313Z Style : Compact UnitCount : 1