Best Diamond Jobber Drill Bits of 2026

This premium quality set includes a total of 20 twist diamond drill bits in four sizes (1mm, 1.5mm, 2.0mm, and 2.5mm), making it compatible with Dremel and other rotary tools. It is perfect for drilling clean holes in fused glass, gemstones, rocks, ceramic, porcelain, and other materials to create jewelry designs, such as necklaces, earrings, bracelets, and pendants with sea shells, beach glass, and rocks. The set also includes four brass collets compatible with Dremel to ensure precision and ease of use.

The Craftics Plastic Drill Bit is designed to make your drilling tasks easier and more efficient. With its diamond dust coating, you can expect longer tool life and sharper cuts, allowing you to work with various plastics without hassle. The high-speed steel construction ensures that you create clean, chip-free holes, which is essential for a professional finish. Additionally, you’ll appreciate the lack of chipping, cracking, or melting during your drilling process, making it perfect for materials like acrylics and PVC. This tool is specifically engineered to handle the unique challenges of plastic, giving you confidence in your projects.

The Craftics 5/32" Plastic Drill Bit is designed specifically for drilling through various plastic materials like acrylics, Plexiglas, Lexan, ABS, and PVC. With an overall length of 3-1/8 inches, it offers a comfortable grip and control. The diamond dust coating enhances durability and ensures sharper cuts, allowing you to create precise holes without hassle. You can expect clean, chip-free results thanks to the high-speed steel construction, which minimizes issues like chipping or melting. This drill bit is an excellent choice for anyone looking to work with plastics efficiently and effectively.

The Flever 1mm Drill Bits come in a set of 60, giving you plenty of tools for your projects. Each bit has a 1/8-inch shank, making them compatible with most drills, flex shafts, and dremels, so you can easily use them with your existing equipment. These diamond-coated bits are perfect for drilling through beach sea glass, seashells, rocks, and marbles, allowing you to create clean, precise holes without damaging your materials. Whether you’re a jewelry designer or a hobbyist, these bits help you make beautiful earrings, pendants, and bracelets with ease and accuracy.

The Lounsweer Double End Cobalt Bits come in a bulk pack of 50, giving you plenty of drill bits for everyday projects. Each bit has two cutting ends, so you can drill two separate holes without switching bits, which saves you time. Made from durable M35 cobalt steel, these bits resist heat and wear, ensuring they last longer even with tough use. The 135-degree split point design helps you drill faster and more accurately, making your work smoother and more efficient. Just remember to control the speed and pressure to get the best results with these reliable drill bits.

The Flever Diamond Drill Bit Set is a versatile collection of drill bits designed for jewelry designers and lapidary enthusiasts. With a 1/8" (3mm) shank, this set includes 10pcs each of 1mm, 2mm, and 3mm drill bits, providing options for drilling holes of different sizes. The drill bits are specifically designed for drilling clean holes in beach sea glass, sea shells, rocks, marbles, and other gemstones. The wet drilling feature ensures smooth and precise drilling, making it easier for users to create their desired designs. With the Flever Diamond Drill Bit Set, jewelry designers can effortlessly drill clean holes in various materials, bringing convenience and efficiency to their work.