For all you DIYers and workshop pros who sharpen your own drill bits, this 3-piece angle set is an absolute game-changer! Made from durable stainless steel, this set includes three different angle tools: a drill diameter angle gauge (90mm), drill bits angle gauge (80mm), and general angle tool (48mm). The main protractor handles 118-degree summit angles for twist drills up to 50mm diameter - perfect for most common sharpening jobs. But it doesn't stop there - you can check various drill point angles including 60, 70, 90, 110, 118, 125, 135, 150, and 160 degrees. It's also great for measuring cutting tool angles, thread inspection (55 degrees for metric, 60 degrees for inch), and checking blades or special tools. The stainless steel construction ensures these won't rust or wear out, and the ±5 degree accuracy is plenty precise for workshop use. They come in a handy protective case that keeps everything organized and makes it easy to store with your other sharpening tools. Whether you're maintaining your own drill bits or doing precision metalworking, having the right angles measured accurately makes all the difference in performance. If you're tired of guessing angles or using makeshift methods for sharpening, this professional angle set gives you the proper tools to do the job right every time.