Combination wrench AWTools AW39977, size unspecified, chrome-plated, 60 g

AWTools AW39977 is a chrome-plated combination wrench machined from chrome-vanadium (CrV) tool steel, designed as a single-piece tool combining an open-end spanner and a ring spanner. The wrench is drop forged, hardened and tempered, then finished with chrome plating and polished surface. It features a 72-tooth ratchet mechanism with a 5° swing arc and a switch lever to change ratchet direction quickly. The open end has a 15° angle for improved access in confined spaces. Clear size markings and a compact weight of approximately 60 g make the tool convenient for a range of mechanical, automotive and household repair tasks.

Advantages

The AWTools AW39977 offers a combination of durability and precision due to its chrome-vanadium construction and heat treatment. Chrome plating and polished finish provide corrosion resistance and easier cleaning. The integrated 72-tooth ratchet with a 5° swing arc and a direction switch enables fine incremental turning and efficient reversal without removing the tool from the fastener. A 15° angled open end improves approachability in tight areas while clear size markings speed up tool selection.

Suitable for

• Automotive maintenance and repair
• General mechanical assembly and disassembly
• Household repairs and appliance maintenance
• Amateur and professional workshop use

Key specifications

• Material: Chrome-vanadium (CrV) tool steel
• Manufacturing: Drop forged, hardened and tempered
• Finish: Chrome plated with polished surface
• Design: Combination wrench with open-end and ring-end
• Ratchet: 72-tooth mechanism with 5° swing arc and direction switch
• Open-end angle: 15° for improved accessibility
• Markings: Clear size markings on the body
• Weight: Approximately 60 g
• Standard: Compliant with DIN 3113

How to use

Select the AWTools AW39977 by matching the clear size marking to the fastener. Position the open end or the ring end over the nut or bolt head. Use the ring end with the ratchet engaged for continuous tightening or loosening without lifting the tool; change the ratchet direction with the switch lever as required. For confined spaces, use the open end with its 15° offset to gain better access. Apply steady force and avoid sudden impacts; use a correct-sized wrench to prevent rounding of fasteners.

Usage recommendations

For prolonged tool life, clean and lightly lubricate the ratchet mechanism periodically and store the wrench in a dry environment. Avoid using the wrench as a hammer or applying pneumatic impact; inspect for wear and replace if teeth or contact surfaces are damaged. Use the correct size and position to maintain compliance with DIN 3113 and ensure safe operation.