Ideal for general workshop or maintenance use where high precision and productivity are required. FEATURES High Quality 6542 HSS Carbide with a reinforced head to provide great wear resistance and long durability. Smooth Drilling Each bit is equipped with a split-point tip that helps to increase speed and starts on contact. Wide Applications Effectively and accurately drill on all materials: glass, tile, concrete, brick, plastic and so on! Unique Design Unique U type slot design provides an efficient drilling action and reduced walking for greater accuracy. We truly believe we make some of the most innovative products in the world, and we want to make sure we back that up with a risk-free ironclad 45 day guarantee. If you don't have a positive experience for ANY reason, we will do WHATEVER it takes to make sure you are 100% satisfied with your purchase. Buying items online can be a daunting task, so we want you to realize that there is absolute ZERO risk in buying something and trying it out. If you don't like it, no hard feelings we'll make it right. We have 24/7/365 Ticket and Email Support. Please contact us if you need assistance. Remember: Shipping usually takes 2-3 weeks read our Shipping for more details!