Specification Brand : Aexit BulletPoint1 : Product Name : Grinding Diamond Point Bits Set;Shape : Taper Point;Model : 25# BulletPoint2 : Material : Alloy;Shank Diameter(Each) : 3mm / 0.12";Each Length : 45mm / 1.77" BulletPoint3 : Diamond Coated Length : 12mm/ 0.47";Case Size : 143 x 60 x 20mm / 5.6" x 2.4" x 0.8"(L*W*T) BulletPoint4 : Color : Silver Tone;Total Weight : 95g BulletPoint5 : Package Content : 30 Pcs x Grinding Point Bits;1 x Plastic Case : 1 x Plastic Case FinishType : Silver ItemName : Aexit 12mm Length Grinders Diamond Taper Tip Grinding Point Bit Straight Grinders 30 Pcs ItemTypeKeyword : power-straight-grinders Manufacturer : Aexit Material : Metal Material1 : Carbide Material2 : Diamond ModelNumber : modle PartNumber : B01063473 ProductDescription : 30 Pcs diamond point bit set in a protective plastic case, can be used for a variety of hole making and grinding tasks in glass, ceramics, porcelain, plastics. Diamond Point set is perfect for use with your high speed drilling or grinding tool. Replacement part for power grinder which require 3mm shank bit. ProductSiteLaunchDate : 2018-09-28T02:33:08.625Z SurfaceRecommendation : Metal SurfaceRecommendation1 : Ceramic SurfaceRecommendation2 : Stone SurfaceRecommendation3 : Glass UnitCount : 1