TCT for abrasive materials such as chipboard MDF plywood hardwoods and hard plastics. Two flutes give a clean finish to cut edges. Has a TCT plunge centre tip. Short shank for Makita 3600B & 3612BR Ryobi and Hitachi routers. Specifications: • Shank Diameter: 1/2 • Dia Metric: 12 • Dia Imperial: 15/32 • Cut Length Metric: 63 • Overall Length Metric: 100