Glass cutter

The utility model discloses a glass cutter, including cutter arbor, tool bit and H type slider, be provided with locking groove, spout and scale mark on the cutter arbor, the locking groove is seted up in the cutter arbor top, the spout is seted up in the cutter arbor both sides, and the spout with the locking groove link up mutually, the scale mark is carved in the spout top, be provided with screw rod, side blade and preceding blade on the tool bit, the screw rod welds in the tool bit rear end, and screw rod threaded connection in cutter arbor front end, the tool bit left side is worn to locate through the pivot by the side blade, the tool bit front end is worn to locate through the pivot by preceding blade, H type slider is provided with on the H type slider and tightly decides bolt andvacuum chuck in wearing to locate the spout, it is middle above H type slider tightly to decide bolt threaded connection, vacuum chuck passes through the bearing interference and connects in H type slider left side. The util