This listing is for the tip of a super-hard spatula only, in the shape and size specified in the title. This listing is for the tip only, so you will need a handle such as a pin vise as shown in the image, but it offers excellent cost performance and ease of maintenance. (Pin vises, grinders, and scales are not included, but a cap is included.) There are mainly three shapes: bullet-shaped, needle-shaped, and an intermediate type (three types of images are used). The one attached to the pin vise in the image is the standard intermediate shape. The length is 30 mm before polishing, and there are individual differences in the finished length and the length of the polished surface. The polished surface is about half, and the actual mirror-finished part is about 10 mm. The first 10 mm from the tip is perfectly polished. There's no point if the polishing rod is scratched. Since I was not satisfied with the commercially available products when I was doing craft work, I was always polishing and maintaining them. The M size is roughly cut to 2.35 mm to match the shaft diameter of a rotary tool, so it can be attached to a rotary tool. Made of the highest quality super-hard material in Japan, it is difficult to scratch, so curved surface polishing is difficult. Also, many people cannot maintain super-hard spatulas because cutting and polishing them is difficult. No matter how good the super-hard material is, the spatula is not maintenance-free. It is said that the investment material in the voids of casting defects mainly damages the spatula. In the age of steel, it was polished all the time like a barber's razor. As shown in this image, you can re-polish relatively quickly by rotating the buff vertically and the rotary tool horizontally. (The grinder in this image also includes a rotary tool.) Although super-hard materials also have voids, scratches are relatively easy to remove, just like precious metals. Because cutting and polishing super-hard spatulas is difficult, they are mainly round in shape because they are made by rotating them, but the current polishing finish of the tool shop is also polished in this way. (Diamond paste is required for polishing.) Many mass-produced jewelry items are polished by cutting and polishing with a rotary tool or buff. Polishing with a spatula has the characteristics of not decreasing and tightening the polished surface. It is also used for sesame seeds that cannot be removed even if they are cut. In the past, platinum was polished with a spatula. It is also used for polishing Japanese swords. Of course, re-polishing is also possible at our shop. Mercari delivery, Nekopos shipping included. http://bijodam.com Hosted by BijoDam Workshop Graduated from the Japanese Jewelry Craft Carving and Engraving Department, CGL DC, Yutaka Ota