Ratchet & Socket Adapters*Scroll right to see all columnsE p> No. Gear Action Gear Teeth D1 (mm) D2 (mm) L (mm) Weight (g) NBRA3 Ratchet Adapter (72 Tooth) 5 72 29 17. 7 49 130 *Made in Japan A comfortable gear feeling with attention paid even to sound The number of gear teeth is 72, and the feed angle is as fine as 5, which improves workability. When combined with the slide head handle and extension bar, it can be used as a T shaped ratchet. The rubber ring can be replaced.