



🔩 Unlock precision and power in every twist — don’t let hard-to-reach valves hold you back!
The Klein Tools 86939 Hex Adapter converts a 1/4-inch square wrench opening to 3/16 and 5/16-inch hex sizes, enabling HVAC and refrigeration professionals to access hard-to-reach valves with ease. Featuring a spring-loaded ball bearing lock for secure attachment and crafted from durable powder-coated alloy steel, this compact adapter is designed for seamless ratcheting action and long-lasting performance. Made in the USA, it’s engineered to meet the demands of professional-grade HVAC&R work.
| Manufacturer | KLEIN TOOLS |
| Part number | 86939 |
| Item Weight | 19.8 g |
| Product Dimensions | 5.38 x 0.91 x 0.61 cm; 19.84 g |
| Item model number | 86939 |
| Color | Black |
| Style | Adapter for Refrigeration Wrench used in HVAC |
| Finish | Powder Coated |
| Material | Alloy Steel |
| Item Package Quantity | 1 |
| Head Style | Fixed Square |
| Special Features | Spring Loaded |
| Included components | Tools & Accessories |
| Batteries Included? | No |
| Batteries Required? | No |
Trustpilot
5 days ago
4 days ago