Square hand shank.
Select size from pulldown sizes button.
NO.6/0 : Shank size 3/32
NO.5/0 : Shank size 7/64
NO.4/0 : Shank size 1/9
NO.3/0 : Shank size 9/64
NO.2/0 : Shank size 5/32
NO.0 : Shank size 11/64
NO.1 : Shank size 3/16
NO.2 : Shank size 13/64
NO.3 : Shank size 15/64
NO.4 : Shank size 17/64
NO.5 : Shank size 5/16
NO.6 : Shank size 23/64
No.7: Shank size: 13/32"