ER20 Spanner M Type A Type UM Type pack of 1 CT40 PULL STUD All critical tool holder surfaces

All critical tool holder surfaces are precision-groundGage length is 40mm

you can use WDMW06T320 DIJETBrand Insert into this

setting bevels

SDMT-1204-50-22-4T  -Suitable Holder FMA22

Carbide insert for Steel and Stainless Steel machining with or without coolant

ER20 Spanner M Type A Type UM Type pack of 1 CT40 PULL STUD All critical tool holder surfacesER20M A UM Wrench is made from high quality alloy steel. The thick material allows high torque without bending, 5 point contact ensures no distortion of the collet nut while tightening, the ER20 Wrench works on all of our M type and A type collet chucks that take ER20 collets