Solid Brass Material : Constructed from solid brass with special heat treatment, these collets offer exceptional hardness and durability, ensuring long-lasting performance. Wide Range Of Clamping Diameter : The collet set includes various sizes from 0.5mm to 3.2mm, catering to diverse drilling and grinding needs. Compatibility With Most Rotary Tools : Suitable for use with Dremel and other rotary tools, ideal for electric grinding and suspension tasks. Easy To Use : Quickly change between different clamping capacities, making your electric grinders more versatile for various applications. Precision Engineering : Designed to fit perfectly into wells under 4.3mm diameter, providing precise and secure grip on drill bits. Elevate your crafting and DIY projects with our meticulously engineered collet set. Designed for precision and crafted with durability in mind, this collection offers a wide array of clamping diameters to accommodate a variety of tasks. Perfectly compatible with most rotary tools, including the popular Dremel models, each piece is made from solid brass to ensure it stands up to the demands of rigorous use. Say goodbye to constant replacements and hello to reliability and precision!