Core Drill Machines Granite Countertops tools specifically designed for the granite countertop fabricator, and large machinery for cutting and splitting large granite slabs are now available from several sources.  These tools include large granite saws that have diamond coated saw blades for long wear, (sometimes referred to as diamond saws), , diamond wire saws that use long continuous feeds of diamond coated wire to cut slabs or make specialty cuts, diamond drills or diamond bits for drilling granite, granite polishers that polish large slabs of granite for granite countertops, granite countertop routers and profiling tools routing decorative edges on granite countertops or sink cutouts, and other hand tools and accessories for all these countertop tools and large machinery.              Tripod Glass Drilling Machine Tripod Glass Drilling Machine is the most widely used machine in the industry Best Selling Glass Drill Machine. For Use with Diamond, Steel or Brass Tube Drills as Well as Spearpoint and Prismatic Drills. Runs at 1300 RPM. Tripod Glass Drilling Machine is the most widely used machine in the industry. With improvements made over the years, some of the more outstanding features are: Heavy-Duty, 4 Amp Variable Speed Motor With Ball Type Thrust Bearings. Dual Adjustment System for Quick and Micro Depth Adjustments. Self-Drilling Design That Eliminates a Need for Operator Applied Pressure. Lubricated, Sealed Bearings to Reduce Maintenance Costs. Compound Action Handle for Easy Lifting. Additional Product Information: It plugs into any 110 VAC circuit, and is portable. Machine accepts most Tube Drills (Brass, Steel or Diamond Core Drill Bits) along with Carbide Spearpoint Drill Bits. Prismatic Carbide Tipped Drills can only be used at a reduced speed. Comes complete with a chuck key and eight foot power cord.