ABT40 ER20A collet chuck 70/100L Size:ABT40 ER20A-100L Once the indicator positio at

Once the indicator positio at zero

Avoid the drill dropped when used in instantaneous change of direction and equipped with a spanner hole for perfect safety

CYLINDRICAL Integrated Keyless Drill Chuck with High Quality and heavy-duty Jaws for Longer Life

They have center hole both sides

ABT40 ER20A collet chuck 70/100L Size:ABT40 ER20A-100L Once the indicator positio atABT40 ER20A collet chuck 70 100L ABT40 HOLDER CAN FIT INTO BBT40 CALIBRATED SPINDLE ONLY. ABT40 Holder Taper and Both Faces Are in Contact With the Spindle. As a result, the Spindle and Holder Act as a single unit. This allows a Higher "Radial Rigidity", Hence We Get Good Surface Finish and Dimensional Accuracy While Machining Also Low Vibration at higher speeds, which increases tool life. Collet Chuck Holder Is Balanced to G6. 3 12000 Rpm