115Pcs Cobalt Drill Bits Set M35 High Speed Steel Bits For Metal/Wood/Plastic. This 115-piece Drill Bit Set is a testament to precision engineering. It offers a vast range of sizes for every drilling need. It comes with 29 fractional, 26 letter, and 60 numbered bits. Each piece is precision-ground for a smooth finish and accurate drilling. The universal shank ensures compatibility with various tool holders, while the 135° split point design allows for quick, low-pressure penetration. Made from M35 alloy steel with 5% Cobalt, these bits are built to last, outperforming standard HSS bits. Organized in a handy holder, this set is the epitome of efficiency and reliability for professionals and DIY enthusiasts alike. Drill Bit Set Features. 29pcs Fractional Size: 1/16 to 1/2 inch bits in 1/64th increments. 26pcs Letter Size: A To Z. 60pcs Numbered Size: #1 To #60. Drill bit holder with size index for easy storage and organizing. 135° Split Point & Twist Design. 5% Cobalt Alloy Stel. We will respond to you within 24 hours and assist you as best as we can. We will update your tracking information and share it with you in a message. Any product you return must be in the same condition and the original packaging. Reach out to us via message for instructions. Thank you for shopping with us. Thank you for your support!