Specification Brand : Aexit BulletPoint1 : Cutting Diameter: 45mm/1.8"; Product Name: Glass Hole Saw BulletPoint2 : Material: Metal , Diamond Particles; Package Content: 3pcs x Glass Hole Saw BulletPoint3 : Weight: 138g; Shank Size: 8 x 20mm/0.3" x 0.8"(L*D) BulletPoint4 : Total Length: 50mm/2" BulletPoint5 : Main Color: Silver Tone Color : Silver CompatibleMaterial : Glass CompatibleMaterial1 : Glass CompatibleMaterial2 : Ceramic ItemName : Aexit 8mmx20mm Shank Hole Saws & Accessories 45mm Dia Diamond Coated Hole Saw Drill Bit 3pcs for Hole Saw Sets Glass Tile ItemTypeKeyword : hole-saw-sets Manufacturer : Aexit Material : Diamond ModelNumber : modle PartNumber : f190413ae052171 ProductDescription : Silver tone , 45mm Cutting Hole Diameter, diamond particles, Glass Hole Saw. The diamond coating on these saws give superior performance and life. The Hole Saw Tool is perfect for making and accurate hole on glass , tile or . Works better with a electric drll(here is not included). ProductSiteLaunchDate : 2018-09-29T06:54:45.445Z Style : Compact SurfaceRecommendation : Wood,Metal UnitCount : 1