Review on CaRoller 29-Piece Cobalt Plastic Set by Adolfo Goins

CaRoller drill bits were ordered for use on my workbench and DIY projects. This is a professional SAE titanium coated drill bit set. The set contains 29 drill bits from 1/16" to 1/2" diameter. Two days after receiving the kit, I had a job that required using a 1/16 bit multiple times on a piece of hardwood. It drilled accurately and quickly, and fortunately the drill passed the test without breaking. I don't know how many times I've broken a 1/16" bit with little side pressure. The drills are made of cobalt-hardened M35 steel, which means that the drill had to be made with 5 to 8% cobalt. It's definitely hardened steel based on my use of bits. They're sharp, and when you open the package you can immediately see that the bits are covered in some kind of grease. It may be advisable to wipe down bits before use, especially on projects where the lube can contaminate the product. The screw housing is strong and durable and will hold all bits securely. It also has a clip in case someone wants to hang them on a belt, pants or other items. The only negative thing I noticed was the marking for each drill. The font is very small and difficult to read. Obviously the 1/16" and 1/2" bits are easy to identify as they are the largest and smallest. Everything else is guesswork unless you start with the smallest and count up to the correct size, or count from the largest. This isn't a huge problem, but certainly a disappointment when trying to read the very small raised font in the same color as the case. sold in hardware stores. They are sharp, come in a sturdy round body and are made from hardened M35 cobalt steel. After testing and using I think this is a good buy and I will definitely order again.