Professional 1/4" drive 20-tooth ratchet adaptor with nickel-chrome plating, knurled grip ends, and 18-degree swing arc for precision fastening in industrial applications.
The Snap-on 1/4" Drive 20-Tooth Ratchet Adaptor (Model TM77) is a professional-grade tool designed for precision fastening applications in industrial and automotive environments. This adaptor features a robust 20-tooth mechanism that provides smooth, reliable operation with an 18-degree swing arc, allowing for efficient work in tight spaces. The male/female drive ends are equipped with a knurled surface that enables secure finger tightening and easy removal without slipping, ensuring consistent performance across various fastening tasks.
Constructed with premium nickel-chrome plating, this ratchet adaptor offers superior corrosion resistance and maintains its polished appearance with minimal maintenance. The chrome finish not only protects against rust and oxidation but also makes the tool easy to wipe clean after use, reducing downtime and extending the tool's service life. With dimensions of 15/16" head depth and 1-5/8" head width, the adaptor provides excellent balance and control during operation.
This Snap-on adaptor meets ASME/ANSI B107.10 standards, guaranteeing compliance with industry specifications for safety and performance. The 1/4" square drive compatibility makes it an essential addition to any professional tool collection, whether for aviation and aerospace maintenance, military and defense applications, or general industrial use. Ideal for technicians and professionals who demand reliability and precision in their fastening tools.
Key Features
- 20-tooth mechanism for smooth, reliable ratcheting action
- 1/4" male/female drive ends with knurled surface for secure finger tightening
- Nickel-chrome plating provides superior corrosion resistance
- 18-degree swing arc allows efficient work in confined spaces
- Meets ASME/ANSI B107.10 industry standards for safety and performance
Technical Specifications
| Specification |
Value |
| Model Number | TM77 |
| Drive Size | 1/4" Square Drive |
| Gear Teeth | 20 |
| Head Depth (Dimension A) | 15/16 inches |
| Head Width (Dimension B) | 1-5/8 inches |
| Swing Arc | 18 degrees |
| Finish | Chrome with Nickel Plating |
| Material | Steel with Nickel-Chrome Plating |
| Standards Compliance | ASME/ANSI B107.10 |
| Drive Configuration | Male/Female Ends with Knurled Surface |
