3/8"sq. RATCHET HANDLE 90 TOOTH LONG FLEX HEAD High-precision 90-tooth mechanism provides exceptionally smooth operation for efficient performance.4° feed angle allows for effective work in confined spaces with limited swing clearance.Low idle torque delivers a light yet precise feel, enhancing user control and confidence.Ergonomic lever design ensures easy force transmission and effortless directional switching.7-step paw structure distributes load evenly across the gear, improving durability and strength BR390FL