Features and Benefits:

• Drive Size: 3/8 inch square drive
• Gearing: Seventy two tooth mechanism for a tight five degree swing arc
• Torque Increase: Delivers up to ten percent higher torque limit compared to thirty six tooth versions
• Dual Pawl Design: Enhanced engagement via patented dual pawl with single spring for improved reliability
• Backlash: Exceptionally low backlash performance maintained despite higher torque
• Length: 160 millimeters, compact size ideal for tight, hard to reach spaces
• Quick Release: Push button release mechanism for fast and secure socket changes
• Maintenance Free: Optimized internal spring design eliminates need for lubrication; high viscosity oil may impair pawl function
• Head Dimensions: Approximately twenty four point five millimeters by twenty eight millimeters by thirteen point seven millimeters



Engineered for professionals who demand precision and durability in tight workspaces, the Ko‐ken Z Series three eighth inch square drive ratchet handle features a newly developed seventy two tooth mechanism that reduces the swing arc to just five degrees, ensuring meticulous control where clearance is limited. Its innovative dual pawl system, powered by a single spring, enhances gear engagement and delivers ten percent more torque capacity compared to traditional thirty six tooth models. After four years of rigorous research and development, this ratchet strikes an optimal balance by offering excellent torque, minimal backlash, and smooth operation without requiring lubrication. The quick release push button securely locks sockets in place, making tool changes swift and reliable. At one hundred sixty millimeters in length, it provides a compact form factor ideal for confined environments without compromising on power.