ER11 -1mm to 7mm Spring Collet Set Chuck for CNC Milling Lathe Tools - 15 Pieces

Features: Ground roughness and overall fine polish. Special angled slots increase rigidity. Protects the tool holder from contaminants. Better overall balance of the tool holder assembly. With high precision and strong holding force. Suitable for boring, milling, drilling, tapping, engraving, CNC, spindle machines, and other processing. The correct method of mounting the collet nut:
Put the chuck into the pressure cap, gently turn the clamp spring, when the eccentric portion of the pressure cap recesses the clamp spring groove. Along the arrow direction and using equal force to push the clamp spring, can mount the pressure cap.
Put the clamp spring and cap all together installed on the chuck body or spindle. Insert into the clamping hole after wipe the cylindrical shank, use a wrench to tighten the pressure cap, until clip firmly the tool before use.(Note: Avoid fastening the pressure cap that is not installed tool, to avoid damaging the clamp spring.
Use a wrench to loosen the pressure cap and take out the chuck or tool, remove the tool. Along the direction of the arrow, push out the clamp spring. Then, according to need, replace the other clamp spring.

What's in the box
15 x ER11 Collet Chuck