Bench Dog Tools 40-131 DualTrack Universal T-Track accepts 5/16-Inch Tbolts, 1/4-Inch T-bolts, and 1/4-Inch hex bolts. Combines miter track and a T-Track for any application. 3/4-Inch by 3/8-Inch miter track for standard or "T" miter bars. Mounting hardware not included. 1/2-Inch Height by 1 3/16-Inch Width by 36-Inch Length