Techniks 16504 | BT30 Taper x 15.85mm Diameter x 24.00mm Length x 45.00mm Projection Length Jacobs Taper Tool 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. Taper ground to AT3 accuracy. Better T. I. R. and rigidity than standard drill chucks. Use with keyless Jacobs chucks. Product Specifications UNSPSC Code 27112809 Size