(1) T-track 3/8"x 3/4"
GT2018A ---32"
GT2018B---36"
(2) Miter Track 1/2"x 1-1/4"
GT2019A ---32"
GT2019B---36"
GT2019C---48"
(3) Double T-track 3/8"x 3/4"
GT2020A ---24"
GT2020B---36"