Chisel Hoop Setting Tool ■Size: Height approximately 45mm, Width approximately 48mm ■Weight: Approx. 290g ■Material: All steel ■Manufactured in Japan Features: This is a forged tool specifically designed for setting chisel hoops. The inside is tapered, and when placed over the handle and struck straight downward, it applies force only to the hoop without hitting the handle itself. This allows the hoop to be driven down smoothly and securely. With this single tool, you can set chisel hoops of various sizes. Usage Instructions: Before using your chisel, set the hoop by driving it downward with this tool. The hoop will gradually move into position as you work. For chisels 4 bu (≈12 mm) and larger, place a piece of soft wood underneath, stand the chisel upright on it, place the hoop‑setting tool over the handle, and strike downward. Do not hit hard all at once—tap gradually while checking the progress. For chisels 3 bu (≈9 mm) and smaller, do not place wood underneath. Hold the chisel in the air, align the hoop‑setting tool straight with the handle, and tap gently. Narrow and thin chisels may bend from the thinner neck section, so proceed carefully. Note: Do not use this tool on chisels 2 bu (≈6 mm) or smaller, as they are more prone to breaking. Item no. 1119670 What is "downward ring-beating"? Before using a chisel, lower the ferrule attached to the end of the handle slightly below the handle, then tap the end of the handle with a hammer to widen it, being careful not to hit the ferrule itself. That's where this downward-facing ring striker comes in handy.Its inner surface cone-shaped, and when you place it over the handle and strike straight, without striking the handle, force is applied to the surrounding descending wheel, allowing only the descending wheel to move down easily. For chisels 4 bu (≈12 mm) and larger, place a piece of soft wood underneath, stand the chisel upright on it, place the hoop‑setting tool over the handle, and strike downward. Do not hit hard all at once—tap gradually while checking the progress. For chisels 3 bu (≈9 mm) and smaller, do not place wood underneath. Hold the chisel in the air, align the hoop‑setting tool straight with the handle, and tap gently. Narrow and thin chisels may bend from the thinner neck section, so proceed carefully. When using a narrow, thin chisel, be careful as it may bend at the thin part of the shaft.