Slater’s CTS0500 Series Coolant Through Punch Broach Holders facilitate punch broaching on CNC lathes, mills, and presses with the added advantage of internal coolant delivery. Coolant flows directly through the .500" tool bore to the cutting surface, providing maximum cooling and flushing chips from inside the part. This method of broaching is most beneficial for applications requiring no witness marks, excessive material removal, or timing of the form to a feature on the part.