Spiral Router Bits Up Down Compression Bit with DLC Coating, 1/4 inch Cutting Diameter, 1" Length,1/4 Shank Solid Carbide CNC End Mill for Wood Carving Engraving Grinding Grooving (2)

-Spiral compression router bit used for smoothly upcut and downcut groove and slots, Mortises, Cycles and dados, Plunge cut leave with clean edge and top surface. - HIGH PROCESSING EFFICIENCY: The edge of end mill bits is HARD and SHARP, process the heat treatment materials under 32 with high speed, reduce changing times and improve the production efficiency. - STRONG and DURABLE: High Hardness and Heat Resistance. The spiral end mill bits are made from Ultra-fine steel bar, with high bending resistance and abrasion resistance, exclusive to HIGH HARDNESS, HIGH SPEED CUTTING applications. - CUTTING EDGE DESIGN: The bottom of spiral router bit is u-shaped groove design, large front angle effectively reduces cutting resistance, sharp and durable, convenient for chip removal, further improve machining efficiency. - Straight shank handle, rounded chamfer design for easy installation and improved work efficiency..- Large chip flute design for smoother chip removal, making the work piece smoother and brighter.