GSTK Upgrade Heavy Duty Carbide Hole Saw,Metal Steel Hole Saw Drill Bit,TCT Hole Cutter-Alloy Hardness Upgrade, Life Upgrade,Use for Stainless Steel, mild Steel, Iron, Copper,etc (23mm|29/32")

Specification: Material: high quality Carbide Cutting Depth: 63/64"(25mm); Cutting Diameter: 29/32"(23mm); 1. Made of N Carbide steel, the gears ?is sharper and more efficient, ideal for cutting hard metals. 2. Cuts quickly, precise holes in metal, Steel, Stainless Steel, iron, Copper, Brass, Aluminum, Fiberglass, Formica And Other Laminates In Seconds. 3.When the pilot(center) drill bit through the cutting material, the cemented carbide teeth are protected from impact and the bit is easily ejected. Due to the spring design, the problem of chip blockage is reduced. Package Included: 1* Hole Saw Bit 2* Extra Titanium-Plated Pilot Drill bit 1* L-Wrench Warm Tips: Remember to add coolant during continuous high-speed drilling so that the bit does not overheat. It can be water or some kind of oil. This Hole Saw Cannot be used for concrete, tiles and stone. Do not forget to use a lubricant. This product is not easy to cut a relatively thin metal material, can be cutting within the 2-5mm stainless steel plate and the metal plate?15mm.