Description: Industrial Quality Tungsten Carbide Bottom Cleaning Router Bits. Double flutes, straight shank, precise, smooth, no burr edges. Solid hardened steel bodies with anti kickback design. Build up and heat resistant coating. Use on CNC, engraving machine, trimming machine and cutting machine. Great for solid wood, hardwood, particleboard, composite Wood etc. Specification: Material: Tungsten Steel Size(Approx.) Shank x Cutting Diameter x Cutting Depth A: 1/4 x 3/8& 39;& 39; x 0.51& 39;& 39;(13mm) B: 1/4 x 1/2& 39;& 39; x 0.51& 39;& 39;(13mm) C: 1/4 x 5/8& 39;& 39; x 0.51& 39;& 39;(13mm) D: 1/4 x 3/4& 39;& 39; x 0.67& 39;& 39;(17mm) E: 1/4 x 7/8& 39;& 39; x 0.67& 39;& 39;(17mm) F: 1/4 x 1& 39;& 39; x 0.67& 39;& 39;(17mm) G: 1/2 x 3/8& 39;& 39; x 0.51& 39;& 39;(13mm) H: 1/2 x 1/2& 39;& 39; x 0.51& 39;& 39;(13mm) I: 1/2 x 5/8& 39;& 39; x 0.51& 39;& 39;(13mm) J: 1/2 x 3/4& 39;& 39; x 0.67& 39;& 39;(17mm) K: 1/2 x 7/8& 39;& 39; x 0.67& 39;& 39;(17mm) L: 1/2 x 1& 39;& 39; x 0.67& 39;& 39;(17mm) M: 1/2 x 1-1/8& 39;& 39; x 0.78& 39;& 39;(20mm) N: 1/2 x 1-1/4& 39;& 39; x 0.78& 39;& 39;(20mm) O: 1/2 x 1-1/2& 39;& 39; x 0.78& 39;& 39;(20mm) P: 1/2 x 1-5/8& 39;& 39; x 0.59& 39;& 39;(15mm) Q: 1/2 x 1-3/4& 39;& 39; x 0.59& 39;& 39;(15mm) R: 1/2 x 2& 39;& 39; x 0.59& 39;& 39;(15mm) S: 1/2 x 1-3/8& 39;& 39; x 0.78& 39;& 39;(20mm) Package Includes: 1 Piece Bottom Cleaning Router Bit