Product details:

Techniks 22909-4.72-RR | CAT40 Rigid Reach x 3/16" Diameter x 4.72" End Mill Holder- 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 standard. The Rigid Reach holders are balanced to 10,000 RPM and the taper is ground to AT3 standard for maximum spindle contact. Each holder is individually certified in a lab for accuracy and comes with a detailed performance report.Product Specifications UNSPSC Code 27112809 Nose Diameter (in) 0.78 Nose Diameter (mm) 19.8 Bore I.D. (in) 0.1875 Bore I.D. (mm) 4.8 Taper Type CAT40 Material 8620 Steel Type End Mill Holder Style Single End Rigid Reach Gage Length (in) 4.72 Gage Length (mm) 119.9 Overall Length (in) 7.41 Overall Length (mm) 188.1 Warning: This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.