F product features:1 choose material products: 65 mn spring steel2 large clamping force, clamping rangeThree widely used for boring, milling, drilling, screw tap, such as engraving, CNC processing workDirections for use:1 will chuck in the pressure inside the cap, gently turn the circlip, stay eccentric pressure cap part recessed circlip groove, along the direction of arrow firstly promote the circlip, and within the pressure cap.2. Install the circlip with pressure cap on the chuck body or machine tool spindle, cylindrical shank of the cutting tool into the clamping hole after rub-up, firstly use spanner fastening pressure cap, until the knife clip before use.(note: avoid is in not installed tool clamping pressure cap, so as not to damage the circlip)3, when the tool change, using a wrench to loosen pressure likewise the chuck and the cutting tool, cutting tool, along the direction of arrow forcibly push circlip, make its exit, and then according to the need to change other aperture card policy.