Wera
Wera 7770 Series Series Open Ended Insert Spanner Insert, 39 mm, 9 x 12mm Insert
Part No.
05078605001
Procurement Intelligence
The Wera 7770 Series is a modular open-ended spanner insert system designed for use with compatible torque wrench or socket handles via 9 x 12mm bit-style connections. Critical verification: confirm the 9 x 12mm insert interface matches your existing tool holder/handle to ensure proper seating and prevent slippage during fastening operations.
Metric fastening with modular handles
Before ordering — verify:
| ☐ | Insert interface compatibility |
| ☐ | Handle/wrench ownership |
| ☐ | Corrosion resistance finish |