The B5-3 is designed for rotary work in general dental surgery, where a contra angle brings the bur to surfaces that lie out of line with a straight piece. The head is small, measuring 8.9 by 14.1 mm, and it is set at 92 degrees to the body, which suits work on posterior teeth at the back of the mouth.
Across restorative rooms and hospital clinics, a contra angle is picked up and set down many times each day. Its ratio is a 1:5 speed increase, printed on the head so the team can identify the piece at a glance. The magenta ring at the base gives a quick cue on a tray of plain metal, and the SOCO logo lets the maker's name be read without turning the handpiece. The small arc at the front of the handle is shaped to keep the work in view.
The technical lines are short. A push-button chuck holds a 1.6 mm bur, a four-point water spray supports the cut, and the maximum speed is 200,000 rpm. Ceramic bearings sit in the head, inside its small outer casing. The description does not give noise level, air supply or weight, and a team that needs one can request it through Medigear.
Practice managers and dental assistants handle purchasing. One code, B5-3, names the handpiece. A group of rooms can use this model under one code, so a reorder is a single line, and the trays look alike from room to room.