Item Type: End Mill V Router Bit Kit Material: Tungsten Steel Specification: 8x1/2, 8x1/4, 8x5/16, 8x3/8, 8x5/8, 8x3/4, 8x7/8, 8x1 Package List 8 x End Mill V Groove Router Bit 8 x Storage Box 1Tungsten Steel: Our V groove router bit is made of tungsten steel material with being hardened and sharpened. Tungsten alloy bits increase speed and extend service life. 2Specification: Our V groove router bit kit contains 8 bits, 8mm shank and 8x1/2, 8x1/4, 8x5/16, 8x3/8, 8x5/8, 8x3/4, 8x7/8, 8x1. 3Suitable Material: V groove router bit cuts sharply and smooth to reduce the burr. Suitable for wood, laminate board, MDF, plywood, etc. Build a very smooth cut. 4Fast Cutting Speed: This end mill V groove router bit adopts fast cutting speed, strong and durable. Used for cutting, beading and grooving. 5PTFE Coating: This V groove router bit has an integral hardened steel body with an anti recoiling design. Accumulation and heat resistant PTFE coating.