3/8 Quad-Cutter Glass Drill 3/8 x 3-1/2" quad-cutter glass drill use water - tungsten carbide tip QGD38 $11.950/ea
3/16 Razor-Cutter Glass Drill 3/16 x 4" razor-cutter glass drill use water - tungsten carbide tip RGD316 $6.790/ea
3/16 Quad-Cutter Glass Drill 3/16 x 2-3/4" quad-cutter glass drill use water - tungsten carbide tip QGD316 $6.590/ea