<p>Solid Carbide Spiral Router Bit with 1/4 inch Shank and 1/4 inch Cutting Diameter, 1-1/8 inch Cutting Length, 3 inch for Total Length;</p> <p>Flat Top with 4-Flute, Material: HRC55 Carbide with TiAlN Coated;</p> <p>For CNC,Engraving Machine. Carbon Steel, Mould Steel, Inconel, Stainless Steel, Titanium Alloy etc;</p> <p>The Route Bit Suit for CNC Router and Makita, Bosch, and Any Brand Plunge Router with 1/4" Collet;</p> <p>End Mill Bits are Suitable for Side Milling, End Milling, Finish Machining, etc.</p>