Chuck Collet Shank Holder High Hardness 40CR Carbon Steel for CNC Lathes MTB3-ER40-M12

1、High quality carbon steel material can make sure the durability and stability of the product 2、The chuck shank holder has high hardness durable and long service life 3、Great workmanship excellent performance convenient to install. 4、This is MTB3 Morse shank holder which is easy to replace 5、ER40 has large clamping range suitable for machining operations on various CNC lathes