DOACT 13 Pcs Collet Set ER20 Collet Chuck 1mm-13mm Holder Super Spring Collet Set For CNC Engraving Machine & Milling Lathe Tool

Product description The correct methods of mounting the collet nut: 1. Put the chuck into the pressure cap gently turn the clamp spring when eccentric portion of the pressure cap recessed clamp spring .Along the arrow direction and use equal force to push clamp spring canmount pressure cap. 2. Put the clamp spring and cap all togetherinstalled on the chuck body or spindle. Insert into the clamping holeafter wipe the cylindrical shank use a wrench to tighten the pressurecap until clip firmly the tool before use. (Note : Avoid fastening pressure cap that not installed tool to avoid damage the clamp spring) 3. Use a wrench to loosen the pressure cap and took out the chuck ortool remove the tool. Along the direction of the arrow push out theclamp spring. Then according to need replace other clamp spring. Specification: Color/Style: ER20 Material: High Grade 65Mn spring steel Total height: 31.5mm/1.24inch Outer diameter(Max): 21mm/0.83inch Run-Out Tolerance: