What is a back tilt lock on a drafting chair?

A back tilt lock (sometimes called a tilt lock or recline lock) is a mechanism that locks the seat and back in an upright or specific reclined position. This is useful for tasks where a constant posture is needed — for example, drafting or drawing tasks where you want the back to stay upright rather than recline when you shift weight. Without a lock, the chair's back may slowly recline as you lean into it, which is distracting for precision work. Most quality drafting chairs include a tilt lock that lets you choose between free tilt (ergonomic for varied tasks) or locked upright (better for precision work). FindOfficeFurniture.com — call 888-719-4960 for chairs with tilt lock features.