This is a listing for one engraving chisel with a specific title shape and size. The 105°/75° hair-line engraving does not have an image, but the image is close to 90°. Please refer to the illustration. The bottom image shows a single-cut chisel and a 60° hair-line engraving. The overall image shows a 60° hair-line engraving. The wooden grip installation image uses a single-cut chisel, and the engraver machine installation image uses a 60° hair-line engraving and a single-cut chisel. The last photo shows the machine specifications from a side angle, and if in stock, it can be changed to machine specifications, so please check in the comments. Because the cutting edge of cemented carbide is extremely sharp, even with Japanese-style engraving chisels, the cutting edge will easily chip if it is simply sharpened on a flat grinding machine. Western-style engraving uses a prying motion and has a sharp cutting edge, so it is not durable. However, this was resolved by slightly curving the lower blade during sharpening. Therefore, we utilized the sharpening techniques of Japanese-style engraving and repeatedly practiced sharpening and test engraving to productize it. Furthermore, it is buffed with diamond paste (single-cut chisels also have a mirror finish on the sides). The engraving angle may be slightly higher than that of general Western-style engraving chisels. The advantage of the curved lower blade is that the force applied to the cutting edge is distributed by the curve, making it less prone to chipping and easier to bend. Also, the engraving marks are clean because they are engraved like a spatula. It is made from approximately 2.4mm round stock, and the length is 50mm before sharpening, which may be slightly shorter after sharpening. The size of the cutting edge has a strong taper value and also has different opposing angles, so it cannot be measured accurately, and the tolerance is ±0.1mm. M is approximately 1mm, and L is approximately 1.5mm, with intermediate sizes also available. Except for the 60-degree hair-line engraving, the diagonal line is 90° and approximately 1.5 times the opposing dimension. The trapezoid is the dimension of the lower blade tip. It can be attached to a chuck grip or a GRS set screw handle, but the handle's installation compatibility is not guaranteed. With this wooden grip, the total length will be a little less than 10cm when inserted all the way in. All photos are image reuse photos, so please understand that there may be some differences. Grips and scales are not included for installation reference (case and cap are included). The wooden grip in the image can be purchased together only if it is in stock. Please let us know in the comments. 1155 yen + the difference in compact shipping costs will be added. Initial defects will be handled, but chipping or damage after use cannot be exchanged. The width and angle of the cutting edge can also be adjusted during re-sharpening. http://bijodam.com/ Kobo BijoDam Yutaka Ota