Glass cutting tip is from Hartmetall. Its dimensions are known at 4.5 x 1,30 x 1.0mm and 135 °. The cutting capacity of the Hart metal glass cutting end is 18 times higher than the normal metal end. You can cut an average of 10.000 m flat glass with an average of Hart metal glass cutting tip. End protection within the special packaging. Sourity was prevented from rubbing in a hard place and blunting. Absolutely stainless. There are 50 glass cutting ends on a tablet.