I needed to remove the seats from my 246GT Dino and was stymied by the front bolt on the inner tracks of both the driver's and passenger's seats (the one next to the center console). I easily removed the other three bolts from the outer and inner seat tracks with an "L" shaped hex wrench, but, that front inner bolt posed a completely different problem. The seat track handle was in the way, but, the bigger problem was the front and the side corner of the seat (nearest to the center console) restricts the area above that front inner bolt. I could get the hex wrench on to the bolt, but, I only had room to move it about a 1/4" before it hit the seat track handle. I thought about cutting the short end of the hex wrench to give more room above the bolt, but, this didn't solve the lack of room to sufficiently turn the bolt with the hex wrench.
I did some hunting on the internet looking for any type of mini metric hex wrenches, but, none of them had a low enough profile and the ability to ratchet the bolt with the hex bit. That is until I found the website of The Chapman Manufacturing Company. They had a small kit with metric hex bits (with a ball bearing stopper to hold the hex bit in place in the mini ratchet), a mini open end ratchet, and a flat sprocket-like tool that the hex bit snaps into and you can manually turn it to remove a bolt. The included hex bits were: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, and 6mm. Luckily, the 6mm hex bit was the proper one for the seat track bolts. This ratchet and metric hex bit made it possible for me to successfully remove the two front inner seat track bolts with so much ease that it surprised me.
I know that this might not be a revelation to some of you, but, I just wanted to share my experience in case anyone else was faced with this problem. The Part Number of the metric set is #X0014NGFEN. And their website is www.chapmanmfg.com
These tools are made in the USA.