Spec Tool's new HD90 heavy-duty 90 offset driver head uses an optional detachable handle or 18-volt cordless drill to reach spaces with as little as 2 1/2" of height, with no swing needed. According to the company, the HD90 handles a lot of torque and can fit into spots where you can't use a stubby screwdriver much less a drill. The HD90 also has a locking magnetic chuck that fits any 1/4" hex-shaped ANSI drill or drive bit accessory. Its rugged, adjustable cam-lock stabilizing arm has 12 radial and 4 angle stops allowing for 48 different working positions.