Precision ground inner hole with 0.005mm runout, no chatter during high-speed cutting for superior workpiece finish.
Compliant with DIN6499 standard, compatible with all standard ER tool holders, full sizes ER8 to ER40 available.
Made of 65Mn spring steel through integrated forging & heat treatment, high hardness and long-lasting elasticity without deformation
Multi-slit elastic design delivers even clamping force, anti-slip even under heavy rough milling.
Sealed coolant-through type optional, withstand 120bar high-pressure coolant for deep hole machining cooling.
Mirror polished inner & outer surface, rust and oil resistant, easy to clean, no chip jam after long service.
Factory direct stock, single piece or complete sets available, custom size & package for bulk orders.