Size: This set includes router bits with an 8mm shank. The top bearing flush trim router bit has a bearing diameter of 19.5mm and a cutting depth of 51.8mm. The bottom bearing flush trim router bit has a cutter diameter of 19.5mm and a cutting depth of 50.5mm. Please refer to the size image for exact measurements. Material: Constructed with a solid hardened steel body and industrial-grade micro-grain carbide cutters for a sharper, longer-lasting edge. Feature: Silver induction brazing provides maximum strength and durability. The anti-kickback design ensures safe operation. High hook and shear angles allow for smooth cutting with clean, splinter-free results. Extra-long cutters enable both plunge-cutting and pattern or template routing. Application: This top and bottom bearing flush trim router bit set is suitable for a wide range of materials including wood, MDF, particleboard, plywood, softwood, and hardwood. Ideal for use with CNC machines, automatic routers, handheld routers, and table-mounted portable routers. Perfect for woodworking, grooving, and smooth edge trimming. What You Get: One 8mm shank flush trim template router bit with top bearing, one 8mm shank flush trim template router bit with bottom bearing.