The B5-4 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 ratio is a 1:5 speed increase, and the water outlet is a C-shaped groove that sends the spray to the cut.
In restorative rooms and hospital clinics, a contra angle is lifted and replaced many times a day. The arc-shaped illumination angle design carries light to the front end of the handpiece, so the work stays lit while the bur turns. Four sanitary holes at the front end keep dirt out of the head, and a dust-proof cover on the movement keeps debris out as well. The magenta ring at the base gives a team a quick cue on a tray of plain metal, and the body marking SCHB5 can be read beside the code.
The technical lines are short. The chuck is a push-button type for a 1.6 mm bur, the spray reaches the cut at four points, and the top rotation speed is 200,000 rpm. A four-fold gear structure drives the head. The description does not give noise level, air supply, weight or head size, and a team that needs one can request it through Medigear.
Practice managers and dental assistants handle purchasing. One code, B5-4, names the handpiece. Several rooms can order this model under one code, which keeps each reorder to one line and the trays matched in every room.