Review on Efficient Park Tool SG-8 Threadless 🪚 Fork Saw Guide: Ideal for Cutting Carbon Blades by Paul Koehler

Cutting a carbon shaft just once might be overkill. However, if you have multiple cuts and need a tool that will last forever and make precise cuts, then this is for you. This SG-8 version is specially designed for Park Tool carbon woods. As such, this blade has no teeth. Instead, a specific edge resembling a thick crust is used. This shell cuts carbon fiber very cleanly, leaving no burrs. The edges of the crust are also thicker than the blade itself. Consequently, the washer used to guide the blade is wider in the SG-8 version to accommodate the wider edge of the crust. If you are using a standard 32 tooth hacksaw you will need the SG-6 version. The clamping mechanism works great. Essentially, you don't have to apply a lot of pressure to hold the fork securely in place. The metal edge on the underside of the silver plate serves as the place where you clamp the device in a vise. This makes the platform very stable. In a few moments you will have a clean and even cut. The only issue I had was seeing pencil marks on the carbon fiber shaft. I tried using a silver marker but it was also very difficult to see when the stem was pinched. Finally, with a flashlight and slowly moving the stem back and forth, I sighted the spot and was able to line it up fairly accurately. However, my cut was actually around 0.75-1mm. Luckily I marked my cut to leave 2mm under the recoil pad, so I still have 1.25-1mm of room, which is still plenty. In hindsight it would have been better to use masking tape on the cut edge. It would be much more noticeable. This is a quality tool that will outlive me and does exactly what it was designed to do - very precise, right angle cuts in pipes.