The pre-balance G6.3-8000rpm, the standard precision balance G6.3-12000rpm, G2.5-15000rpm, 20000rpm.
Shank BT(MAS403), SK(DIN69871): A(without through hole)\AD(without through hole for center coolant)\AD+B( the former is in the center cold, the latter is in the flange plate cold, may realize central cooling and the side cools two forms the freedoms to transform)
Precision A class ≤0.005mm, AA class≤ 0.003mm
Collet Spec is DIN6499B, The integrated precision with chuck and nut: A class≤0.01mm, AA class≤0.005mm.
Chongde toolholders and collet chucks are manufactured to the highest standards to take advantage of the performance characteristics of Chongde milling products.
These holders are constructed of alloy steel with a hardness range of 56-60 HRC and a pilot runout less than0 .005mm. The result is higher metal-removal rates, improved surface finish, and longer tool life.
