Comprehensive Size Range: R8 collet set includes 8 essential sizes ( 3/16" 1/4" 5/16" 3/8" 1/2" 5/8" 3/4" 1" )
Dual end function: Supports both dual end and single end milling cutters (Note: single end use requires dimensions exceeding 5/8" for optimal safety and performance).
Good material structure: The R8 chuck is forged from high-strength 20CrMnTi alloy steel, ensuring excellent toughness and high performance.
Hardening and Grinding Treatment: Each chuck undergoes accuracy hardening and grinding, with a hardness of HRC 56-60, making it durable and reducing tool slippage.
Enhanced grip: The hardened surface ensures a firm fixation of the cutting tool, minimizing vibration and improving machining accuracy during heavy operations.