The Automann 210.1912 is a professional-grade specialty tool engineered for the precise removal and installation of 3-7/8" axle and spindle nuts. Designed specifically for the heavy-duty trucking and commercial trailer industry, this 6-point (hex) socket provides the maximum surface contact needed for safe, high-torque wheel-end maintenance.
This 3-7/8" socket is an essential addition to any heavy-duty shop. The 6-point design is engineered to grip the flat sides of the fastener rather than the corners, significantly reducing the risk of rounding off expensive spindle hardware during service.
⚠️ Safety Note: This tool is precision-machined for MANUAL USE ONLY. Do not use with impact wrenches or power tools, as this can lead to tool failure or damage to the fastener. Use a manual breaker bar or torque wrench to ensure proper bearing preload according to OEM specifications.
| Attribute | Value |
| Part Number | 210.1912 |
| Application | Axle Nut / Spindle Nut |
| Width Across Flats (WAF) | 3-7/8” |
| Drive Size | 3/4” |
| Point Type | 6-Point (Hex) |
| Socket Type | Standard |
| Compatibility | Universal Heavy-Duty |
This part is a direct professional-grade replacement for:
Euclid: E1912 (Wrench 3-7/8in 6pt)
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We also offer the OTC version of this tool: Part # 210.OT1912.
Optimal Surface Contact: 6-point hex configuration prevents slippage on high-torque applications.
Shop-Grade Durability: Forged from high-quality industrial steel to withstand the rigors of commercial repair environments.
3/4" Drive Compatibility: Fits standard heavy-duty manual drive tools and precision torque wrenches.
Reliable Fitment: Direct cross-reference to Euclid E1912 for seamless inventory replacement.
Automann is a leading global supplier of heavy-duty truck and trailer parts. Choosing the 210.1912 ensures you are using a tool built to the high standards required for fleet maintenance, ensuring both safety and efficiency in the shop.
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