Kyocera MEW040R 15 4T M 40mm Milling Toolholder (4 Inserts 16mm Bore Internal Coolant) Nylon Mechanical Pipe Test plug bung with 10mm bypass 13mm to 18mm Manufactured from high speed steel enhanced 3054040A Manufactured from high speed steel enhanced with 5–8% cobalt Comprehensive Range – Available in both metric and imperial configurations The Kyocera MEW040R 15 4T M Milling Toolholder is a precision engineered milling cutter designed for efficient material removal and accurate machining The Kyocera MEW040R 15 4T M Milling Toolholder is available from Twin Eagle Imports for compatible milling applications requiring a 40mm cutter with four inserts and internal coolant capability