When you need a perfect cylinder finish that actually works, this Flex-Hone® tool is your secret weapon. Originally developed for automotive cylinder walls in 1972, this ingenious little brush has become the go-to solution for machinists, gunsmiths, and mechanics who demand precision. Unlike conventional honing tools, this flexible abrasive brush creates that magical cross-hatch pattern that oil loves to cling to while eliminating sharp peaks that cause seal failure.
What makes this tool so special is its unique construction. The flexible abrasive beads conform to any cylinder shape, creating a true plateau finish that's free of torn or folded metal. This means your rings seat faster, your oil control is better, and your seals actually last longer. Whether you're working with mild steel, stainless steel, cast iron, or softer ferrous materials, this tool adapts to give you consistent results every time.
The beauty of this Flex-Hone® is its incredible versatility. Gunsmiths use it for firearm chambers and shotgun barrels. Automotive mechanics swear by it for brake cylinders and wheel cylinders. Musicians rely on it for instrument maintenance. Even hydraulic and pneumatic systems benefit from the reduced seepage and better seal performance. And yes, it's also fantastic for deburring cross-drilled holes, port radiusing, and edge blending - all without requiring elaborate setups or special training.
Here's what really sets this tool apart: it's self-centering, self-aligning, and self-compensating for wear. That means you get consistent results whether you're a seasoned pro or just starting out. The 180 grit silicon carbide abrasive is perfect for most metals, and the 4mm diameter makes it ideal for smaller cylinders and precision work. Simply chuck it in your drill, let the tool do its magic, and watch your surfaces transform from rough to perfectly finished.
From the machine shop to the garage bench, this Flex-Hone® tool has earned its nickname as the "glaze buster" for good reason. It's not just another tool - it's the solution to cylinder finishing problems that have plagued mechanics for decades. When you need surfaces that perform better and last longer, this is the tool that delivers.
