This Industrial and Scientific drill bit is amazing for my DIY projects. Through trial and error, I found that it produces really fast and precise holes, which is exactly what i need for my cutting tools. This jobber carbide tipped drill bit exceeded my expectations in terms of durability.Although it's a little pricier than some other cutting tools I think it`s worth the price for the quality. The only con for me is that it's not suitable for use with wood..