Industrial S2 Steel Long-Arm Metric Hex Key Set 1.5mm - 10mm (9 pieces set)

Description

TOTAL Hex keys (THT106191)

TOTAL THT106191 is an industrial-grade 9-piece metric allen wrench network engineered to manage high-torque assembly, structural machinery maintenance, automotive repairs, and precision manufacturing setups. Forged from ultra-premium S2 tool steel—a material globally preferred over standard chrome-vanadium for high-stress driving tools—this comprehensive set features an extended long-arm configuration to access deeply recessed fasteners while maximizing physical leverage.

Ultra-Premium S2 Metallurgy & Structural Precision

• Industrial S2 Tool Steel Forging: Unlike basic hex keys that easily twist under heavy manual loads, this entire set is engineered from S2 tool steel. This advanced metallurgy delivers exceptional core hardness, high tensile strength, and elastic resilience, allowing the keys to absorb intense rotational torque without snapping or stripping out
• Full Induction Heat Treatment: Every key is precision heat-treated to optimize its internal molecular matrix. This guarantees that the hex points retain their razor-sharp structural profile and crisp edges through thousands of high-frequency fastening cycles
• Corrosion-Proof Chrome Plating: The steel surfaces are treated with an industrial chrome plated layer, providing a smooth satin-finish barrier that blocks moisture, grease, and corrosive factory chemicals from degrading the tool core

Extended Reach & High-Torque Physics

• High-Leverage Long-Arm Geometry: The elongated shaft dimensions maximize the physical lever arm relative to the pivot axis. This allows mechanics to exert massive breaking torque on frozen, rusted, or over-tightened fasteners with significantly less manual effort
• Precision-Chamfered Hex Tips: The working ends are machined with smooth, burr-free chamfered bevels. This precise dimensional calibration allows the key tips to slide smoothly and seat deeply into hex sockets, ensuring total wall-to-wall contact and eliminating the risk of stripping or rounding

Technical Specifications:

• Tool Component Count: 9 Pieces
• Material Composition: Premium S2 Tool Steel (Heat-Treated)
• Surface Protection: Industrial Corrosion-Resistant Chrome Plating
• Drive Profile Type: Metric Hex / Allen Head
• Primary Applications: Industrial automated assembly lines, heavy plant machinery maintenance, commercial automotive diagnostics, electric motor servicing, and structural steel framing setups

Comprehensive Dimensional Layout:

1. 1.5mm x 62.5mm
2. 2.0mm x 76.0mm
3. 2.5mm x 85.5mm
4. 3.0mm x 91.0mm
5. 4.0mm x 102.0mm
6. 5.0mm x 118.0mm
7. 6.0mm x 139.0mm
8. 8.0mm x 155.0mm
9. 10.0mm x 177.0mm