Elora Imperial Socket Set, 3/4" Sq. Dr. (15 Piece)

The Elora 15-Piece Imperial Socket Set, 3/4" Square Drive (770 SAZ) is a professional-grade heavy-duty imperial socket set engineered for the substantial American-pattern fastener work encountered in HGV, commercial vehicle, agricultural, plant, marine, and specialist heavy engineering applications. Combining 12 large-format bi-hexagon imperial sockets covering 7/8" to 2" AF, a robust reversible ratchet with push-through coupler, a 400mm extension bar, and a sliding T-bar, the 770 SAZ delivers the kind of professional-quality heavy-duty imperial coverage that's increasingly difficult to find — but absolutely essential for the specialist workshops that need it.

Manufactured from chrome vanadium steel — hardened, tempered, and chrome plated — and supplied in a heavy-gauge steel storage case, the 770 SAZ brings genuine Elora professional quality to the heavy-duty imperial end of the socket spectrum.

Why Heavy-Duty Imperial Matters

Despite the UK's metrication, heavy-duty imperial fasteners remain a daily reality across many specialist areas:

• American HGVs and trucks — Kenworth, Peterbilt, Mack, Freightliner, Western Star, and other American commercial vehicles use imperial fasteners throughout
• American agricultural machinery — John Deere, Case IH, New Holland (American-built), AGCO, and other American agricultural equipment
• American plant equipment — Caterpillar, John Deere construction, Case construction, and other American heavy machinery
• American marine equipment — particularly larger American-built vessels and engines
• Aviation and aerospace — substantially imperial
• Vintage British heavy equipment — older Leyland, Bedford, and other British commercial vehicles
• Oil and gas industry — heavy reliance on imperial fasteners

For workshops handling this equipment, having proper professional-quality heavy-duty imperial sockets isn't a nice-to-have — it's essential for getting the job done without damaging fasteners or risking safety.

The 3/4" Drive Heavy-Duty Sweet Spot

The 3/4" square drive format provides the substantial torque capacity needed for heavy commercial, agricultural, and industrial imperial fasteners — without the size, weight, and unwieldiness of full 1" drive equipment. For the bulk of heavy-duty imperial fastener work between 7/8" and 2" AF, 3/4" drive is the natural choice, and the 770 SAZ delivers it with Elora's signature German-engineered quality.

Built to the Elora Standard

Elora has been manufacturing professional-quality hand tools in Germany since 1924, and the brand is synonymous with the build quality and precision that serious trade users demand. The 770 SAZ is manufactured to recognised international standards:

• DIN 3120 / ISO 1174 — socket drive square specification
• DIN 3122 / ISO 3315 — hand-operated socket wrench specification
• DIN 3123 / ISO 3316 — extension bar specification
• DIN 3124 / ISO 2725 — universal joint specification

For tools handling the substantial torque levels of 3/4" drive heavy work, this kind of manufacturing certification matters significantly — both for performance and for operator safety.

Chrome Vanadium Steel Construction

The 770 SAZ is built around chrome vanadium steel — the standard alloy for high-quality hand tools because of its excellent combination of strength, toughness, and durability. Every socket and accessory is:

• Hardened to provide the wear resistance needed for repeated heavy use under high torque
• Tempered to deliver the toughness that prevents brittle failure when the going gets tough
• Chrome plated for outstanding corrosion resistance and a long-lasting professional finish

At 3/4" drive working torque levels, the quality of the steel and the precision of the manufacturing aren't optional — they're what stands between a successful job and a catastrophic tool failure. The 770 SAZ's chrome vanadium construction is built for the demands of serious heavy-duty imperial work.

Bi-Hexagon Sockets for Real-World Performance

All 12 sockets in the 770 SAZ are bi-hexagon (12-point) design — providing significant advantages for heavy imperial fastener work:

• Better access angles — engagement at 12 positions means just 30° of arc between positions, particularly valuable on the often awkward access locations of heavy fasteners on American commercial vehicles and machinery
• Easier fitment on weathered or damaged fasteners — American commercial vehicle and agricultural fasteners are frequently corroded, painted over, or partially damaged. The 12-point engagement often allows the socket to grip where a 6-point socket would slip
• Compatibility with both hexagon and 12-point fasteners

Elora's precise manufacturing ensures the bi-hexagon design grips fasteners properly under the high torque levels typical of 3/4" drive imperial work.

Comprehensive Heavy-Duty Imperial Range: 7/8" to 2" AF

The 770 SAZ offers 12 bi-hexagon imperial sockets covering the heavy-duty imperial fastener range in carefully selected sizes:

12 x Imperial Bi-Hexagon Sockets: 7/8, 15/16, 1, 1.1/16, 1.1/8, 1.1/4, 1.5/16, 1.7/16, 1.1/2, 1.5/8, 1.13/16, 2" AF

This range covers the substantial imperial fasteners encountered in American commercial vehicle, agricultural, plant, and marine work. The progression from 7/8" through 2" AF in well-judged increments means professionals have the right socket for the right fastener — including the less-common but specifically useful 1.5/16", 1.7/16", and 1.13/16" sizes that appear on specific applications.

The 2" AF top size handles the largest fasteners commonly found on heavy commercial and industrial equipment.

Reversible Ratchet with Push-Through Coupler

The included reversible ratchet features a push-through coupler — a particularly useful design feature for 3/4" drive heavy work. The push-through coupler allows extensions and sockets to be retained securely during work, with quick release when needed. The reversible function allows changes between tightening and loosening without removing the socket from the fastener — essential for productive heavy-duty work.

The ratchet is built to handle the substantial torque levels that 3/4" drive heavy-duty work involves, delivering the smooth, robust action expected of Elora's German engineering.

Practical Accessory Pack

The 770 SAZ includes the core accessories needed for heavy-duty imperial fastener work:

• Reversible Ratchet with push-through coupler — built to handle substantial 3/4" drive torque
• 400mm Extension Bar — for deep recessed access on wheel, hub, and structural applications
• Sliding T-Bar — for balanced two-handed leverage, essential for the high-torque work that 3/4" drive sockets handle

This focused accessory selection covers the core needs of heavy-duty imperial work. For users requiring additional accessories or working alongside metric heavy-duty equipment, Elora's broader 3/4" drive range includes additional extensions, universal joints, drive converters, and other accessories compatible with the 770 SAZ.

Heavy-Gauge Steel Storage Case

The 770 SAZ is supplied in a heavy-gauge steel storage case — the proper presentation for substantial heavy-duty tools. The case provides genuine protection during transport and storage, important for tools of this size and value, and the steel construction stands up to the realities of heavy workshop and yard environments.

Ideal Applications

The 3/4" drive format and 7/8"–2" AF socket range make the 770 SAZ perfectly suited to specialist heavy-duty imperial fastener work:

• American HGV and truck workshops — Kenworth, Peterbilt, Mack, Freightliner, Western Star, and other American commercial vehicles
• American agricultural equipment specialists — John Deere, Case IH, AGCO American-built machinery
• American plant and construction equipment — Caterpillar, John Deere construction, Case construction
• American marine workshops — larger American-built vessels and engines
• Aviation and aerospace maintenance — heavy imperial fastener work
• Vintage British heavy equipment — older Leyland, Bedford, and similar
• Oil and gas industry maintenance — heavy imperial fastener applications
• Specialist American vehicle restoration — large American classics and commercials
• Industrial maintenance — equipment of American or aged British origin
• Trade specialists working with mixed-origin heavy equipment

A core piece of equipment for American HGV specialists, American agricultural specialists, plant maintenance operations handling American-built equipment, marine workshops with American vessels, aviation and aerospace maintenance facilities, oil and gas industry maintenance, and any operation where heavy-duty imperial fasteners are part of daily work.

Contents Summary

Product Specifications

Important Notes on Use

The 770 SAZ is engineered for heavy-duty imperial fastener work where the substantial torque capacity of 3/4" drive is required. For ultimate torque applications (such as final tightening of American HGV wheel nuts to manufacturer specifications), use of a calibrated torque wrench compatible with 3/4" drive is recommended to ensure correct fastener tension.

When working with large fasteners under high torque, always follow proper safety procedures: ensure secure footing and body position, anticipate the direction of fastener movement, use appropriate PPE including eye protection, and never use damaged or worn sockets at high torque levels. The 770 SAZ's chrome vanadium construction provides exceptional strength, but no socket is designed to handle damage to the engagement surfaces.

Why Choose the Elora 770 SAZ?

For workshops handling heavy-duty imperial fastener work — American HGVs and commercial vehicles, American agricultural machinery, American plant equipment, larger American marine vessels, aviation maintenance, or specialist imperial applications — the Elora 770 SAZ is the right tool for the job. The 3/4" drive format provides the substantial torque capacity that heavy imperial fasteners demand. The chrome vanadium construction with hardened, tempered, and chrome-plated finish delivers the strength, durability, and corrosion resistance that years of heavy professional use require. The bi-hexagon socket design provides better access angles and improved engagement on real-world fasteners — particularly valuable on weathered American commercial vehicle and agricultural components.

The 12-socket range from 7/8" to 2" AF covers the practical core of heavy-duty imperial fastener work, including the less-common but professionally useful 1.5/16", 1.7/16", and 1.13/16" sizes that appear on specific applications. The reversible ratchet with push-through coupler, 400mm extension bar, and sliding T-bar handle the access and leverage challenges of substantial imperial fastener work.

The DIN/ISO manufacturing standards aren't just marketing — they're certification that this is a tool set built and tested to the specifications required for safe operation at the torque levels 3/4" drive imperial work involves. Combined with Elora's reputation for German engineering quality dating back to 1924, the 770 SAZ is a specialist tool set built for the long haul of serious heavy-duty imperial work.

Whether you're equipping an American HGV specialist workshop, an American agricultural equipment service operation, a plant maintenance facility handling American machinery, a commercial marine workshop with American vessels, an aviation maintenance facility, an oil and gas industry maintenance operation, or any specialist environment where heavy-duty imperial fasteners are part of daily work, the Elora 770 SAZ delivers the professional-quality, German-engineered heavy-duty imperial tool capability that serious specialist work demands.

Order the Elora 15-Piece Imperial Socket Set, 3/4" Sq. Dr. (770 SAZ) today and add genuine professional-quality heavy-duty imperial socket capability to your workshop.