Steelex 5 Pc. R-8 End Mill Holder Set M1089

Standard collets can sometimes allow a tool to pull out during heavy milling operations. These R-8 end mill holders use a set screw to lock the shank in place, providing the rigidity needed for aggressive cuts on a knee mill or any machine with an R-8 spindle. This 5 piece set covers the most common shop sizes to keep your milling operations precise and secure. Product Specifications Spindle Type: R-8 Holder Sizes: 3/16 inch, 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch Set Count: 5 pieces Application: Rigid mounting for end mills in milling machines Construction: Hardened and ground steel