Techniks 22911-4.72-RR | CAT40 Taper x 0.250" Size x 1.750" Diameter x 4.720" Projection Length x 7.410" OAL Steel End Mill HolderTechniks mission is to provide high quality and innovative solutions that optimize manufacturing processes for customers engaged in metalworking, composites machining, and woodworking to meet the most challenging applications, improve machining processes, and create cost efficiencies. Techniks Rigid Reach End Mill Holders have an extra thick neck for improved rigidity and cutting performance. The I. D. hole tolerance is an Industry Leading H5