Techniks 16620 | BT40 Taper x 1.250" Size x 0.690" Length x 1.500" Diameter x 1.770" Projection Length Steel Shell Mill ArborTechniks 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 Face Mill Arbors offerr H6 arbor tolerance for less chatter and better tool life. Each arbor is lab certified for dimensional accuracy. The taper is ground to