Professional-grade 3/8" square to 7/16" hex adaptor with high-quality steel construction, tight tolerances, and quick-release chuck for impact wrench applications
The Snap-on 3/8" Square to 7/16" Hex Adaptor (QC3844) is a professional-grade tool accessory designed for impact wrench and ratchet applications. Engineered with high-quality steel construction, this adaptor delivers exceptional durability and reliability for demanding industrial environments. The tight tolerances ensure minimal stripping or cam-out, providing consistent performance across repeated use cycles. This adaptor is specifically designed for 3/8" drive impact wrenches and features a quick-release chuck with a knurled sleeve for fast, easy bit changes in the field.
With an overall length of 1-3/4 inches and a weight of just 3.7 ounces (104 grams), this compact adaptor offers excellent portability without compromising functionality. The industrial finish provides superior corrosion resistance and a professional appearance suitable for commercial and industrial workshops. The high-speed runout capability ensures smooth operation at elevated RPMs, making it ideal for rapid-fire fastening applications. This precision-engineered adaptor is built to Snap-on's exacting standards for quality and performance.
The QC3844 adaptor is part of Snap-on's comprehensive range of power tool accessories and integrates seamlessly with existing 3/8" square drive systems. Whether you're working in automotive repair, heavy equipment maintenance, or general industrial applications, this adaptor provides the versatility and reliability you need. Backed by Snap-on's reputation for excellence, this adaptor represents a smart investment for professional technicians and maintenance teams.
Key Features
- High-quality steel construction for extended tool life and durability
- Tight tolerances to minimize stripping and cam-out during operation
- Quick-release chuck with knurled sleeve for rapid bit changes
- Designed specifically for 3/8" drive impact wrenches
- High-speed runout capability for smooth operation at elevated RPMs
- Industrial finish for superior corrosion resistance
- Compact and lightweight design for excellent portability
- Snap-on professional-grade quality and reliability
Technical Specifications
| Specification |
Value |
| Product SKU | QC3844 |
| Drive Size | 3/8" square drive |
| Hex Size | 7/16" hex |
| Overall Length | 1-3/4 inches (4.5 cm) |
| Weight | 3.7 ounces (104 grams) |
| Material | High-quality steel |
| Finish | Industrial finish |
| Chuck Type | Quick-release with knurled sleeve |
| Application | Impact wrenches and ratchets |
| List Price | $27.00 |
