Tool Calculator

Need to know how deep to drill into wood, plastic, or sheet metal? How thick should a boss be? What’s the best sized hole for … Read more

This Wood Hole Spade Bit Speed Calculator is easier, safer, and cleaner. Because spade bits aren’t as forgiving in geometry as twist drills, or even … Read more

Now, having a stripped thread can make a minor repair costly. You’ve got a casting that won’t hold a bolt anymore and you have no … Read more

The self drilling screw capacity calculator is relevant because framing clips holds loads. Metal roofs stay attached to roofs during storms. Screws goes in, or … Read more

When driving a screw, pilot holes stops the wood from splitting. If it does split, it takes glue and dowels to fix a piece of … Read more

The devil’s in the details, Forstner bits demonstrate this. You get everything lined up looking like it will be perfect and you begin drilling with … Read more

Want to know exactly which RPM your workshop machine should be spinning at for any given project? This calculator lets you input diameter, material SFM … Read more

This calculator is a good tool if your working with standard inch and metric fasteners. Many times, bolts fail not at the exposed part of … Read more

Of all the measurements on a threaded part, the one that counts most is it’s pitch diameter. Thats what wears out and fits into another … Read more

Thread engagement length is one of those deceptively simple details that separates a joint that lasts from one that slowly works itself loose or suddenly … Read more

Looks simple, right? A socket head cap screw is just a screw with a socket on top. But drop it into a machined pocket and … Read more

One thing you need to keep in mind is that your twist drill has a point on it. That means there’s a little bit of … Read more

A screw pull-out strength calculator can help you know wheather your joints will support a load or fail before you put in the first screw. … Read more

Lag screw withdrawal calculator quickens shop connection inspection by estimating withdrawal capacity based off service factors, thread penetration, shank diameter, and wood specific gravity. Stood … Read more