How-To Guides

Angle grinders cause more jobsite injuries than almost any other power tool - and nearly all of those accidents are preventable. Here are the 10 rules that keep you safe when cutting and grinding.

Heat is the number one killer of diamond blades. Learn when to cut wet, how to cut dry the right way, and the simple damp-cutting trick that extends blade life on tile jobs.

A diamond blade grinds, it doesn't slice — and three components decide how well: the steel core, the diamond segments, and the bond. Here's what each one does and how to read blade specs like a pro before you buy.

Slow cuts and chipped edges usually mean one thing: the wrong blade for the material. This selection guide matches diamond blades to porcelain, concrete, granite, and abrasive materials — plus three rules of thumb before you buy.