Technical Specifications:

• Brand: Harden

• Model: 543400 / 543420

• Material: Drop-forged steel (high-grade alloy or carbon/vanadium) [typical for slogging spanners]

• Finish / Treatment: Hardened; likely phosphate treated or similar for durability (based on Harden’s quality style)

• Design: Ring on the working end + reinforced striking end for hammer use

• Standard / Specification: Inspired by industrial slogging spanner standards (similar in function to DIN-7444 style)

Applications:

• Heavy-duty construction bolts and nuts

• Maintenance and mechanical work where high impact force is required

• Structural steel work, scaffolding, and large machinery assemblies

• Industrial, fabrication, and rigging sites