Milescraft 3 Pc. Long Reach Core Box Router Bit Set is designed specifically for sign making, featuring an extra-long reach that makes it i for detailed work. This set works ly with Milescraft SignPro jigs, ensuring precision and ease of use. Each bit has a 1/4" shank, an overall length of 2-3/8", and a cut length of 3/8". The set includes three bits with diameters of 1/4", 3/8", and 1/2", all tipped with durable tungsten carbide for superior edge holding ability and extended working life. This imported set combines quality and performance to help you achieve professional results every time.