The diameter of a thread milling cutter is smaller than the drilled hole, and the cutter turns in an elliptical orbit to reduce cutting torque when compared with machine tapping. One of the most ...

Grooving or recessing operations, sometimes also called necking operations, are often done on workpiece shoulders to ensure the correct fit for mating parts. When a thread is required to run the full ...

Gear-obsessed editors choose every product we review. We may earn commission if you buy from a link. Why Trust Us? With its circular grinding wheels that chew through materials like metal, tile, and ...

The angle grinder may seem like the tool that really does it all, but it can be pretty erratic. For more consistent results, one of these may suit you better.