This cutter was made in the same factory and to the same specification as the original UK leading Brand Professional cutters. Their code for this product was :- 4/1x1/2TC Dimar Product Code :-1077648 by Dimar 1/2" shank straight two flutes solid carbide insert for increased strength, offering cleaner cutting edges and fast clearance of waste. Features a plunge tip. Features solid carbide inserts for increased strength, offering cleaner sharper edges and efficient waste clearance. Specifications: 15mm diameter 25mm depth of cut 1/2" shank NOTE: DIMAR cutters are not mass-produced in Asia unlike those sold by other famous router brands. DIMAR cutters cost a little more but last significantly longer. Extend the life of your router cutters by adding our Router Cutter Sharpening Kit to your order. High-quality carbide, ideal for hard and softwoods and abrasive materials such as laminates, ply, MDF, and chipboard. 1/2 In shank for larger routers with 'k' mark and speed setting etched on the shank to ensure safe working practices.