Shaper SE1-2500-5000C 1/8"x1/2" Up-Spiral O-Flute Router BitAn ideal bit for many types of acrylic cutting. The polished flute prevents nasty chip build up that can compromise cut quality and decrease cutter longevity. Appropriate cutter geometry for both acrylics and non ferrous metals. Great for cuts up to 1 4 in depth. O Flute geometry with a 1 2" depth of cut. Specifications Material: Solid Carbide Overall Length: 2. 5 Shank Diameter: 0. 25 Cutter Diameter: 0. 125 Cutter Length: 0. 25 Geometry: Upcut O