Stanley Proto has introduced nine new Interchangeable Head torque wrenches and 125 head attachments. The Interchangeable Head wrenches consist of three electronic, two micrometer and four preset versions. They come in ¼-, 3/8-, and ½-in. drives, with torque values from 25 in-lbs to 250 ft-lbs. The attachments include ratcheting, open-end and box heads, in metric and inch sizes.
The new wrenches are designed to allow users to remove the ratchet head and replace it with an open end or box head, whose narrower profile can fit into tighter spaces. They also keep workers productive by allowing them to change heads without having to recalculate torque values; that’s because the box and open-end attachments have the same center-to-center distance as the ratchet heads that fit on the same wrench. Each attachment also is marked with a recommended maximum torque value to prevent overtorquing of fasteners.
Open ends are angled to 15 degrees. Ratcheting heads combine a low profile with a 15-degree arc swing and a reversing lever design. The 24-tooth configuration fits 4-, 6- and 12-point fasteners. Box heads feature the Proto Torque Plus Design that engages the fastener flats, not the corners, and is countersunk on both sides. The 12-point box end is indexed to 7.5 degrees to help keep the shank clear of obstructions.
The Electronic Interchangeable Head torque wrench includes a rotating head for easy viewing of LCD display. Three-way red/green/yellow lights and an audible buzzer tell users when the target torque is approaching, has been met or has been exceeded. Target torque zone is adjustable from 1 percent to 10 percent of targeted torque value. All of the new wrenches meet or exceed ASME B107.14M specification.