Overview
The HPI Racing Pro-Series 4.0mm Hex Driver is a precision-engineered tool designed to fulfill the needs of all RC hobbyists, from weekend bashers to pro-level racers. Built to exacting standards with hardened steel tips and a comfortable composite handle, this driver delivers smooth, accurate hex screw engagement every time.
It features the signature Pro-Series ergonomics — large grip area, orange-anodized aluminum accents, and laser-etched size markings.
Key Features
- Large composite handle for use with or without pit gloves
- Lightweight ergonomic shape with hanger hole
- Orange-anodized aluminum accent ring
- Hardened steel hex tip
- Quick hex driver size identification
- Hanger hole doubles as T-wrench port
Performance Benefits
- Ergonomic grip reduces hand fatigue during long pit sessions
- Hardened tip resists rounding even on thread-locked screws
- T-wrench compatibility for high-torque applications
- Professional-grade durability
Usage Notes
- For 4.0mm hex screws (M5 cap heads, etc.)
- Common on 1/8 scale and large-scale RC vehicles
- Use thread lock removal techniques for stuck fasteners
- Wipe clean and store in toolbox
Technical Specs
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Manufacturer: HPI Racing
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Part Number: 115541
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Tip Size: 4.0mm Hex
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Handle: Composite with aluminum accents
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Tip Material: Hardened steel
What's Included
- 1x Pro-Series 4.0mm Hex Driver
Summary
Tackle bigger fasteners with confidence using the HPI Racing Pro-Series 4.0mm Hex Driver. Professional-grade quality for serious RC builders and racers.
