Steelex 5 Pc. R-8 End Mill Holder Set M1089 Power Tools Pressure Relief: Thumb-operated safety valve

Pressure Relief: Thumb-operated safety valve for clean pressure release

14-1/4" Square Base With Mounting Holes

Reversible ratchet drive die wrench for smooth

Paint resists dirt

Steelex 5 Pc. R-8 End Mill Holder Set M1089 Power Tools Pressure Relief: Thumb-operated safety valveStandard 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