We offer discount for large quantity. Welcome to us4pcs Long Reach Rotary Velcro Tungsten Carbide Double Bit 1/4 Inch Shank 6 Inch Set Machinable Materials: Cast Iron, Cast Steel, Bearing Steel, High Carbon Steel, Chrome Nickel Alloy, Bronze, Brass and other metals or tiles, marble, jade bone and other non-metallic. High efficiency, high-quality finish, long service life, good economic returns. Easy to use, safe and reliable, can reduce labor intensity. Mechanical parts chamfering, rounding and grooving. Double chamber is crossover lines, not easy to lock lines, more suitable for object with relatively low material density. Carbide rotary cutter set with a length of 4 pcs. Great for working with high performance motor1/4 inch Shank and 6 inch lengthColor: Silver Material: Alloy Size: 150-160mm Package Content: 4*CutterOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm. About UsWe provide good product with best price, we support wholesale order/