Set di riparazione cricchetto Wera Safe-Torque A2 9919 — ricambi per cricchetto Safe-Torque

Wera 05547729001 is a straight manual screwdriver with a total length of 220 mm and a weight of 168 g. Manufactured in Taiwan, this handheld tool is intended for manual fastening and loosening of screws in assembly, maintenance and repair tasks. The tool includes a rotary control, bit mounting, a heart-shaped spring, a blocking device/ratchet blade, an M4 flange bolt, an end cap and a 395 HO insert wrench screwdriver with hollow shaft and wrench size 7, making it a compact multi-component screwdriver for workshop and field use.

Advantages

The straight shaft and balanced weight provide controlled handling during precision and general fastening work. A hollow-shaft insert wrench with size 7 enables access to recessed fasteners and use with complementary bits. Built components such as the rotary control and blocking device/ratchet blade allow smooth rotation and secure engagement when applying torque. The set of included parts offers modularity for routine maintenance tasks without needing separate components.

Suitable for

• Assembly and disassembly of electronic and mechanical components
• Maintenance and repair work in workshops and service vans
• Tasks requiring access to recessed or through-bolted fasteners
• General household fastening and adjustment jobs

Key specifications

• Total length: 220 mm
• Weight: 168 g
• Tool type: straight manual screwdriver with hollow shaft insert wrench
• Included components: rotary control, bit mounting, heart-shaped spring, blocking/ratchet blade, M4 flange bolt, end cap, 395 HO insert wrench with hollow shaft (wrench size 7)
• Origin: Taiwan

How to use

Hold the handle with one hand and use the rotary control to position the bit or insert wrench. Select and mount the appropriate bit into the bit mounting or use the hollow-shaft insert wrench for through-bolts and recessed fasteners. Apply steady manual torque while the blocking device/ratchet blade secures engagement; reverse the rotary control or remove the bit to loosen screws. Periodically check the flange bolt and end cap for tightness and ensure the heart-shaped spring is seated correctly to maintain proper function.