Ring Spanner Proxxon 30 x 32 mm model 23900

Proxxon ring spanner 30 x 32 mm model 23900 is a hand tool designed to engage hexagonal nuts and bolts with close-fitting, fully enclosed ring ends. Manufactured by Proxxon, this double-ended ring spanner provides two precise contact sizes—30 mm and 32 mm—allowing secure torque transfer for mechanical maintenance, assembly and repair work where accurate fit is required.

Advantages

The ring ends provide full perimeter contact with fasteners, reducing slippage and rounding of bolt heads compared with open-ended wrenches. The dual-size design eliminates the need to carry multiple single-size wrenches for adjacent metric sizes, while the sturdy construction offers reliable torque transmission and long-term durability under normal workshop conditions.

Suitable for

• Automotive maintenance and brake/engine fastener work
• Industrial and mechanical assembly tasks
• Equipment and machinery repair where 30 mm or 32 mm bolts are used
• General workshop use for maintenance and service operations

Key specifications

• Type: double-ended closed ring spanner
• Sizes: 30 mm and 32 mm ring ends
• Material: high-strength alloy steel (heat-treated for durability)
• Drive type: fixed non-ratcheting ring ends for full-contact engagement
• Finish: corrosion-resistant surface treatment

How to use

Select the ring end that corresponds to the fastener size (30 mm or 32 mm), fit the fully enclosed ring over the nut or bolt head until it seats fully, and apply steady turning force in the required direction. Use steady, controlled torque and avoid sudden impacts; combine with appropriate extension or lever only if the tool and fastener can handle the load. Inspect the tool and fastener before use to ensure correct fit and to prevent rounding or slippage.

Usage recommendations

For safe and effective use, maintain the spanner by keeping it clean and lightly oiled after use, avoid applying excessive impact forces, and select the correct ring size to ensure full contact. Store in a tool rack or toolbox to protect the ring profiles and preserve accurate fit.