Search results
KITPLANES editor at large Paul Dye explains the best times to use the so-called step drill (also called a UniBit) for drilling larger holes in aluminum.
Drilling sheet metal using a normal HSS twist drill can be difficult; step drills make the process much easier as demonstrated in this video. Brought to you ...
Steve Parente shows how to easily drill large holes in stainless with a step bit. After starting out with a bi-metal bit and not having much success, Steve ...
10 paź 2023 · Watch this video to see how to a step drill bit can drill a dozen different size holes in thin stock using only a single drill bit and how to control depth.
Steps with progressively larger diameters let you drill a range of sizes with one bit. Also known as step drills. Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits. For technical drawings and 3-D models, click on a part number.
Stepped holes by drilling two holes. First the larger diameter, then the smaller. Always start drilling the large diameter to ensure centering of the drill point and avoid chipping cutting edges. When drilling the small diameter, make sure that the drill point angle is equal to or smaller than that of the large drill to ensure that the point ...
10 sty 2024 · Step drill bits, or unibits or multi-diameter drill bits, are cone-shaped cutting tools with multiple stepped sizes on their fluted surface. They usually have two or three different-sized steps, allowing users to create holes of varying diameters without changing bits.
