You can order also low-profile clamps where jaws are not the same type - even if they might not be standard products.
If both jaws of the clamp are the same, typically there is one letter in the end of the code ( like DK2-VT-T has two addtional piece jaws ).
If jaws are different, there are in most cases two letters in the end of the code ( like BK2-VT-SR has one smooth jaw and one serrated )
Same way clamps BK2-VT-BT and DK2-VT-BT posses one self-aligning jaw ("B") and one jaw for addtional piece ("T")
|jaw nr 2 \ jaw nr 1||R||S||D||Gn||+5 /+3||C||H||V||T||B|
|Serrated basic version||R||DR||RGn||+5R||CR||HR||VR||TR||B|
|Smooth basic version||S||RS||S||DS||SGn||+5S||CS||HS||VS||TS||BS|
|Diamond coated surface||D||D||DGn||+5D||CD||HD||VD||TD||BD|
|Grip jaw models||Gn (*3)||Gn||+5Gn||CGn||HGn||VGn||TGn||BGn|
|Machinable jaw||+5 / +3 (*1)||+5|
|Cross V slot||C||+5C||C||HC||VC||TC||BC|
|Additional piece models||T||+5T||T||BT|
|Self-aligning jaw||B (*2)||+5B||E|
*1 : +3 stands for machinable model in B-series, +5 in D-series
*2 : Self-aligning jaws available in B- and D-series only
*3 : G = knive edge, G1 = one hard steel pin, G2=two pins, G3=3 pins