Design custom (PCB) circuit boards with these FR1 machinable blanks. These circuit board blanks are made by bonding a thin layer of 1 ounce of copper over one or both sides of the entire substrate. To etch a circuit design into the material, unwanted copper can be removed using a CNCmachine, leaving only traces.
. These fishtail bits are great for fine detail and inlays. The upcut tip design creates a cleaner edge on the backside of the sheet when cutting through materials. The flute design works well with high speed spindles and high feedrates.
This set of 6 bits is great for achieving different levels of detail when engraving. Please note these bits have very fine, fragile tips and can break easily. They may need to be replaced often. All bits have a 1/8" shank.