99 Pieces Titanium Twist Drill Bit Set, 135° Tip High Speed Steel, Size from 116 up to 38, Ideal Drilling in WoodCast IronAluminum AlloyPlasticFiberglass, with Hard Storage by HURRICANE

This 230-piece set of drill bits includes a good distribution of sizes, with more of the thin ones that can easily break. The drill bits are made in China and have a titanium nitride coating. They can be sharpened, but a good sharpener is necessary. The set does not come with a storage box. While they may be suitable for lighter drilling tasks, the drill bits are not very durable for repeated use on tough materials. Some customers have reported that the bits break easily, even when drilling through soft pine. However, those who need a large quantity of disposable bits for home projects will appreciate the value this set provides.