Techniks ER Precision Inch Collet – Series ER40

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• Runout (T.I.R.) only 0.0002"
• Collapse range: 0.039"
• Collet sets available
• Use with PowerCOAT nut for best holding power and cutting tool life
• Compatible with DR, RD, ESX, AR, and BR series collets
• Available in Metric Sizes

Our ER collets are the best in the industry. They are made from high-carbon bearing steel that is heat-treated for improved flexibility and longer life. Each collet is precisely ground and honed using a swiss technique, then individually inspected and tested for quality. Compatible with DR, RD, ESX, AR, & BR series collets. For best rigidity and cutter life use PowerCOAT nuts.