The MYWISH 15-Piece Brad Point Drill Bit Set is your reliable partner for precise woodworking. Each bit features a 7mm (approx. 18/64 in.) diameter and a straight round shank, with an overall length of 100mm (4 in.) and a maximum cutting depth of 65mm (2.6 in.). Constructed from high-quality carbon steel, these bits offer excellent hardness and durability, ensuring they won't break easily and will provide a long service life. The brad point tip design allows for pinpoint accuracy when starting your holes, while the widened and deepened chip removal groove quickly clears debris, significantly improving your working efficiency. Suitable for use with bench drills, electric drills, and cordless drills, this MYWISH set excels in various softwoods, hardwoods, plywood, plastic, rubber, and polyurethanes. Note: Not for use on metal, masonry, or glass.