15 Degree Tapered SQ (Flat) End Mill with .020 tip This is a 7.5 degrees per side tapered flat solid carbide end mill. This carbide end mill has a .020 (0.508mm) SQ cutting tip to give the finest detail possible. Specially designed for Carving and Milling Plastic, Acrylic, Wood, Aluminum, Bronze, and many other materials. Excellent for Cutting: Dimensional signage Precision carving and modeling Contouring and profiling Cabinetry and furniture making Great for deep profiling What is a Tapered Square (Flat) bit? Tapered SQ End Mills are designed for side milling, contouring and machining angled slots. Ideal for use in die cast dies & molds. Our tapered end mills have a 30° helix, plus a 2 flute design for added rigidity.