The John Guest Tube Cutter delivers clean, square cuts on plastic tubing from 1/4" to 1/2" O.D. without any adjustment between sizes. Its spring-loaded design with replaceable steel blades ensures consistent performance across all John Guest Quick Connect Fitting installations.
SPECIFICATIONS
Technical Details
| Brand | John Guest |
| Compatible Tubing Sizes | 1/4", 5/16", 3/8", 1/2" O.D. |
| Blade Material | Replaceable steel |
| Housing Material | Durable plastic |
| Design Type | Spring-loaded squeeze mechanism |
| Adjustment Required | None (auto-adjusts to tube size) |
| Cut Quality | Clean, square cuts for leak-free seals |
| Storage Safety | Spring-loaded closure |
INSTALLATION & USE
How to Cut Tubing
- Insert the plastic tubing into the cutting channel of the John Guest cutter, ensuring it sits flush against the back stop.
- Squeeze both sides of the cutter firmly together in one smooth motion until the blade passes completely through the tubing.
- Release the handles to allow the spring mechanism to reopen, then remove the cleanly cut tubing ready for John Guest Quick Connect Fitting installation.
COMPATIBILITY
Tubing Compatibility
This John Guest Tube Cutter works with all plastic tubing types commonly used in water filtration systems, including polyethylene, polypropylene, and nylon tubing in 1/4", 5/16", 3/8", and 1/2" outer diameter sizes. It is specifically designed to prepare tubing for use with John Guest Quick Connect Fittings, where a clean, square cut is essential for proper seal engagement and leak-free performance.
🔧 Pro tip: Always inspect the cut end before inserting into a fitting. A square cut with no deformation ensures the tubing seats fully and the O-ring seals properly. If you see an angled or crushed edge, recut the tubing 1/4" shorter.
