This is a listing for one graver with a specific title shape and size. The 105° and 75° hair-line gravers do not have images, but the image is close to 90°. Please refer to the illustrations. Image 2 shows a single-cut and a 60° hair-line graver on the bottom surface, image 3 shows a 60° hair-line graver of the whole, image 4 shows a single-cut graver with a hand grip attached, and image 5 shows a 60° hair-line and single-cut graver used with an engraver machine. Please be aware that 60° and 75° hair-line gravers are prone to chipping when used with a machine. Because the super-hard material has a remarkably sharp cutting edge, even Japanese-style gravers will chip easily if the cutting edge 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, I utilized the Japanese-style sharpening technique and repeatedly practiced sharpening and test carving, and then commercialized the product. Furthermore, it is buffed with diamond paste (single-cut also has a mirror finish on the sides). The carving angle may be slightly higher than that of a general Western-style graver. 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 carving marks are clean because they are carved 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 different opposing angles, so it cannot be measured accurately, and the tolerance is ±0.1mm. M is around 1mm, and L is around 1.5mm, and there are also intermediate sizes. Except for the 60-degree hair-line graver, the diagonal line is about 1.5 times the opposing dimension at 90°. 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 compatibility is not guaranteed. With this wooden grip, the total length will be a little over 10cm when inserted all the way. All photos are reused images, so please understand that there may be slight differences. Grips and scales are not included for attachment reference (case and cap are included). The wooden grip in the image can be purchased together only if it is in stock. Please let me know in the comments. 1155 yen + the difference in compact shipping will be added. Initial defects will be covered, 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