Spade bits are usually available in metric sizes ranging from 6mm to 36mm and imperial sizes ranging from 1/4″ to 1 1/2″.
What sizes do drill bits come in?
Bit size reflects the diameter of the body. Some projects call for specific drill bit sizes, but a bit set that includes sizes from 1/16 inch to 1/4 inch will work for many jobs around the home and workshop. You can add larger bits — 5/16-inch, 3/8-inch, 7/16-inch and 1/2-inch bits — if you need them.
What's the difference between a spade bit and a Forstner bit?
A Forstner bit, like the spade bit, is a piece that you attach to the end of your drill. Their namesake, Benjamin Forstner, invented them in 1874. ... Unlike the spade bit, the Forstner bit is ideal for creating a neat, precise cut. You can use them to create flat-bottomed holes and even overlapping holes!8 jul 2021
When would you use a spade drill bit?
Spade bits are for wood, plywood, and some plastics, and cut quickly with surprising precision. Use them only at high speeds, to prevent the bit from catching in the workpiece and the drill from trying to wrench itself from your grasp.2 mar 2021
Can you use a spade bit in a regular drill?
Spade bits cause tear-out (splintering) when drilling all the way through a wooden workpiece unless you use a sacrificial piece of wood as a backing. They need to be spun too quickly to be used in hand-powered drills. To be effective, they should be used in a power drill or drill press.
How do you drill a hole in a spade bit?
https://www.youtube.com/watch?v=NNvyGKJ9FWQ
Can I use a spade bit instead of a Forstner bit?
In general, it is best to stick with softwoods when using the spade bit. Alternatively, you can use the Forstner bit on both softwoods and hardwoods. With harder types of wood, however, you will want to watch the speed—make sure to keep it low to prevent overworking the tool.8 jul 2021
When would you use a Forstner bit?
Unlike the standard twist bit, Forstner bits are optimized for woodworking applications and cut exceptionally precise, clean-edged holes in wood. Because they're designed to produce a minimum amount of tear-out when exiting the material, Forstner bits are the best bit for drilling through holes.12 feb 2019
Can I use a Forstner bit with a hand drill?
While each one has its advantages, the Forstner typically drills the cleanest holes. But Forstner bits can also be tricky to use in a portable (handheld) drill, as they're better suited for use in a drill press.22 ene 2020