Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si [Top Quality]Made from high quality Carbide( Tungsten Carbide Tipped Cutters), High-grade Titanium-plated cemented carbide Tooth, ensuring its high hardness, rust proof, sturdy and ; [Size]Cutting diameter:2-3/8 Inch(60mm), Cutting Depth: 1Inch, Shank Dia.: 2/5 Inch(10mm) , perfect for drilling Hard Metal; [Unique Three-blade Design] This hole Saw teeth designed with Three-blade, Include outer blade, middle blade, and inner blade, making it and more efficient, perfect for cutting hard metals; [Multipurpose Tools]This Carbide Hole saw set apply to Bench drill, magnetic drill, drill, drill percussion and so on. Perfect for hard metal, stainless steel plate, square tube, iron, cast iron, wood, F.R.P and other general sheet metal;Note: Cannot be used for concrete, tiles and stone. [High precision and Easy to Use] Carbide Steel teeth for fast cutting of clean, round holes. Suitable for hand held electric drill, stand motor-driven drilling machine and mobile ribbon type magnetism drilling machine; [Package]Include 2pcs T.C.T Hole Saw set and 1pcs Extra Titanium-Plated Pilot Drill bit, 2pcs hex wrenches,each hole cutters are individually cased in plastic box and each bit is also oiled (Prevent rust). Material: alloy colour: Silver size: 60mm Package Contents: 1 x Hole Saw Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.