What is a tilt lock on a drafting chair?

A tilt lock is a lever or knob that prevents the backrest from reclining, locking it in an upright position. This is useful when doing precision work that requires an upright, stable posture — such as drafting, writing, or using a pointing device at a counter. When the lock is disengaged, the chair tilts freely with resistance controlled by the tilt tension knob. Most mid-range and premium drafting chairs include tilt lock as a standard feature. OfficeFurniture2go.com can confirm tilt-lock availability for any model — call 1-800-460-0858.