Use CNC mill to engrave many types of materials. (see Description) It will fit any of our engraving tools. Engraves brass, aluminum, trophies, name tags Made with heavy duty industrial diamond. Have multiple replacements on hand. 1/8" DIAMOND REPLACEMENT 90° BIT You are bidding on a 90 degree replacement diamond tip bit only. (The body is NOT included in this auction) It is the OEM for the 1/4" spring loaded tool that we sell (See our other listings) The replacement tip comes with a new 1/8" x 1.0" diamond tipped cutter, replacement spring and screw. This is everything you need to make your tool like brand new again. With this type of tool you are able to do very detailed engravings on uneven surfaces and the engraving remains even. The tool does not rotate so you do not need to run the spindle. These are perfect for engraving several types of material including brass, aluminum, fiber board, acrylic, plastic painted surfaces and much more. If you have any questions please contact us before purchasing. These are only guaranteed to fit our tools! They may work in others but do not guarantee that they will Skeleton, Piranha, Laguna, Shark, 3020, 3040, 3060, Taig, Sherline, LXG0609, 2020, 2030, 2040, Oliver, Rising, Konmison, Sanvn, Gtsun, Sungoldpower,