WISE Ball Point Hex Wrench Set of 9 (Long), Made In Japan, for Final Tightening, [SBL-900] 1.5-10.0mm

[Uses & Features] WISE's Super Ball Wrench is no longer just a quick tightening tool. Its outstanding strength, raising the breaking load of our previous product (4mm) from 120 kg-cm to 170 kg-cm, is on par with that of a key wrench, making it the only ball point wrench capable of meeting the needs of a final tightening tool. It can be inserted into hex sockets at an angle, even in tight or hidden spaces, without damaging the threads. Final tightening can be achieved using the separately sold Power Up Handle (Triple Handle). Because stress concentrates in the L-shaped (90-degree bend) section, we intentionally use a hot bending process. Only WISE offers hot bending. To ensure a uniform, high-precision tempering (heat treatment) hardness (HRC 60°±1°), we do not use a continuous furnace, but instead use a completely non-oxidizing, decarburization-corrected quenching method in a sealed furnace. [Caution] When applying a strong torque to the handle beyond 45 degrees after the screw has stopped turning, protective equipment is required. Do not use for any purpose other than its intended use. Country of Origin: Japan Set Contents: 1.5mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.0mm, 8.0mm, 10.0mm Material: Special Alloy Chrome Vanadium Steel (SNCM20V) Final tightening is possible using the separately sold Power Up Handles (Triple Handle, Return Handle, Telescopic Return Handle, Pipe Handle). Type: Long Type