Wiha SoftFinish 12mm Nut Driver – 125mm Shaft, Hex Bolster, 34727

Tighten and loosen 12mm hex nuts with comfort, control, and dependable performance using Wiha's SoftFinish heavy-duty nut driver. Designed for professional assembly, mechanical maintenance, and repair work, this tool combines a precision-formed hex socket, solid steel shaft, and ergonomic cushion-grip handle.

The 125mm (5") shaft provides extended reach for accessing fasteners inside machinery, equipment housings, and other areas where a standard wrench may be difficult to position. A deep forged socket offers approximately 1" of depth, making it useful for engaging nuts installed on protruding threaded studs.

For applications requiring additional turning force, the integrated hex bolster allows a compatible wrench to be used for extra leverage. The SoftFinish handle features a large-diameter, eight-sided ergonomic shape designed to provide a comfortable, secure grip during repeated fastening operations.

Manufactured from hardened chrome-vanadium-molybdenum (CVM) tool steel, the solid shaft is built for durability and resistance to wear. A nickel-plated finish helps protect against corrosion during regular workshop use.

Made in Germany, this heavy-duty nut driver is a practical addition to professional tool kits, maintenance departments, assembly workstations, and repair benches.

Features & Benefits

• 12mm Hex Socket: Precision-formed to engage compatible metric hex nuts and fasteners.

• 125mm Shaft Length: Provides additional reach for recessed fasteners and confined work areas.

• Deep Forged Socket: Approximately 1" deep for working with nuts on protruding threaded studs.

• Heavy-Duty Solid Shaft: Provides strength and stability during fastening and loosening.

• Hex Bolster: Accepts a compatible wrench when additional turning force is needed.

• SoftFinish Cushion-Grip Handle: Ergonomic design supports comfortable, controlled operation.

• Eight-Sided Handle Shape: Provides a secure grip and effective transfer of turning force.

• Hardened CVM Tool Steel: Designed for strength, durability, and wear resistance.

• Nickel-Plated Finish: Helps protect steel components against corrosion.

• Professional Construction: Suitable for repeated use in assembly, maintenance, and repair applications.

• Made in Germany: Manufactured to Wiha's professional tool standards.

Specifications

• Brand: Wiha

• Product Series: SoftFinish Heavy Duty

• Manufacturer Part Number: 34727

• SKU: 34727

• Product Type: Metric Hex Nut Driver

• Socket Size: 12.0mm

• Shaft Length: 125mm (5")

• Overall Length: 247mm (9.7")

• Socket Style: Deep Forged Hex Socket

• Socket Depth: Approximately 1" (25.4mm)

• Socket Outside Diameter: 13mm

• Shaft Construction: Solid

• Shaft Material: Chrome-Vanadium-Molybdenum Tool Steel

• Heat Treatment: Hardened

• Finish: Nickel-Plated

• Handle Type: SoftFinish Ergonomic Cushion Grip

• Handle Diameter: 41mm (1.61")

• Additional Torque Feature: Hex Bolster

• Approximate Weight: 0.40 lb (181g)

• Measurement System: Metric

• Quantity: 1 Nut Driver

• Country of Origin: Germany

Ideal For

• Mechanical assembly and repair

• Industrial equipment maintenance

• Machinery servicing

• Automotive maintenance

• Installing and removing 12mm hex nuts

• Working with nuts on threaded studs

• Reaching recessed fasteners

• Production and assembly workstations

• General workshop fastening

• Professional maintenance tool kits

Deep Socket for Threaded Studs

The deep forged socket provides approximately 1" of internal depth, allowing the driver to engage nuts installed on protruding threaded studs.

This design is particularly useful when a shallow socket cannot reach the nut because of exposed threads.

It provides a convenient solution for equipment assembly, machinery servicing, and other mechanical applications involving threaded fasteners.

125mm Shaft for Extended Reach

The 125mm shaft helps reach fasteners positioned inside equipment housings, behind surrounding components, or in recessed mounting locations.

Its solid construction provides a stable connection between the handle and socket for controlled fastening and loosening.

The overall tool length of 247mm provides a useful combination of reach and hand control.

Hex Bolster for Additional Turning Force

The integrated hex bolster provides a wrench-engagement point when additional leverage is required.

By applying a compatible wrench to the bolster, users can increase turning force without relying entirely on the handle grip.

This feature is especially useful during maintenance and repair work involving stubborn fasteners.

SoftFinish Ergonomic Cushion Grip

Wiha's SoftFinish handle features a large-diameter, eight-sided design that provides a comfortable grip during repeated fastening tasks.

The molded cushion-grip construction helps distribute pressure across the hand while supporting secure handling and controlled rotation.

With a 41mm handle diameter, this model provides a substantial gripping surface for professional assembly and maintenance work.

Hardened Steel Construction

The shaft is manufactured from hardened chrome-vanadium-molybdenum tool steel for durability and resistance to wear.

The nickel-plated finish helps protect the steel against corrosion, making the tool suitable for regular use in workshops and industrial environments.

Frequently Asked Questions

What size nuts does this driver fit?

It is designed for compatible 12.0mm hex nuts and fasteners.

Is this a metric nut driver?

Yes. It has a metric 12mm socket.

What is the shaft length?

The shaft measures 125mm, equivalent to approximately 5 inches.

What is the overall length?

The overall tool length is 247mm, approximately 9.7 inches.

Does this nut driver have a deep socket?

Yes. It features a deep forged socket with approximately 1 inch of depth.

What is the advantage of a deep socket?

The deeper socket provides clearance for protruding threaded studs, allowing the tool to engage nuts that may be difficult to reach with a shallow socket.

What is the hex bolster used for?

The hex bolster allows a compatible wrench to be used for additional leverage when greater turning force is required.

Does this nut driver have a hollow shaft?

No. This model has a solid shaft and a deep socket. It is different from Wiha's hollow-shaft nut drivers.

What material is the shaft made from?

The shaft is manufactured from hardened chrome-vanadium-molybdenum tool steel.

Does the tool have a corrosion-resistant finish?

Yes. The steel components feature nickel plating to help resist corrosion.

What type of handle does it have?

It features Wiha's SoftFinish ergonomic cushion-grip handle with an eight-sided design.

What is the handle diameter?

The handle measures approximately 41mm (1.61") in diameter.

Can this tool be used for automotive maintenance?

Yes. It is suitable for automotive and mechanical applications involving compatible 12mm hex fasteners.

Is this suitable for industrial use?

Yes. Its hardened steel construction, solid shaft, and ergonomic handle make it suitable for professional assembly and maintenance applications.

Is this nut driver electrically insulated?

No electrical insulation rating is specified for this model. It should not be used on energized electrical equipment.

Is this sold individually or as a set?

This listing is for one 12mm nut driver.

Where is this tool manufactured?

It is made in Germany.

Micro-Tools makes every attempt to provide accurate information for each item. Actual packaging and/or specifications may be slightly different from the information and picture provided.