
Torque adapters on aircraft fasteners, aka dogbones. Other brands are thicker and cause clearance issues.
Hydraulic wrenches, the angles on snap on until recently were unique and very helpful in getting at hydraulic fittings in tight areas.
Line wrenches as mentioned above, other brands spread more/at less torque.
I would say dual 80 handle ratchets, especially the long handle ones. I have used a 1/2 24" long dual 80 in industrial maintenance for years daily in place of 3/4 drive ratchet and it has held up without failing. Same goes for an 3/8" 18" ratchet.
In 3/4" drive the 42 inch ratchet on mine has taken a 6' pipe and bounced on by a 250lbs man 100's of times without bending and only one rebuild kit in 25 years.
Ratcheting screwdriver/ratcheting t handle. Much better than anyone else's.