(Female (to drive unit): Hex – 2 ” Wide x 6.7″(170mm) Deep. Female end pin hole – 20mm (3/4″). Male (to bit): Round – 2″ Wide x 4″（100mm) Long. Male end pin hole – 20mm (3/4″). 1x Adapter（pin also includes).
Fits 2-9/16″ Female Round Auger, uses 7/8″ pins or bolts to secure. Fits 2″ Male round Power Head, uses 3/4″ pin or bolt to secure. Female (to drive unit): round – 2 ” Wide x 4.7″(120mm) Deep. Male (to bit): Round – 2-9/16″ Wide x 3.9″(100mm) Long.
(Fits 2″ Female Round Auger, uses 3/4″ pins or bolts to secure. Fits 2″ Male Hex Power Head, uses 3/4″ pin or bolt to secure. Female (to drive unit): Hex – 2 ” Wide x 6.7″(170mm) Deep. Male (to bit): Round – 2″ Wide x 4″（100mm) Long.
Fits 2-9/16″ Female Round Auger, uses 7/8″ pins or bolts to secure. Female (to drive unit): round – 2 ” Wide x 4.7″(120mm) Deep. Fits 2″ Male round Power Head, uses 3/4″ pin or bolt to secure.