Collets specially designed for end mills. Long type collets with small angle enhance the stiffness rigidity and clamping force on end mills.
Without use any tools on insert collet into nut and take off collet from nut and take off collet from nut. Nuts have precision processing after heat treatment can improve the balance value. During high speed cutting will not caused vibration.
Ther unique design of HEC collet Chuck is that coolant can spurt out from the collet slot.