Precise Specifications : The mounting mandrel features exact dimensions (Shank dia x L: 1/4" x 1-15/16"; Screw head dia x Arbor dia x L: 3/4" x 3/8" x 5/8" and 3/4" x 1/4" x 5/8") to provide precise and secure fittings, die grinder mandrel ensuring stability and accuracy in your cutting and grinding work Sturdy and Rust-Resistant Material - Crafted from high-quality A3 carbon steel with a protective black plating, this arbor press attachments offers longevity and resistance to rust. Die grinder accessories robust construction ensures it can withstand repeated use, maintaining performance over time Universal Fit for Grinder and Rotary Mandrel Tools - The 1/4" die grinder shank design of this cutting wheel mounting mandrel ensures it fits most grinders and drill rotary tools. cut off wheel mounting mandrel easy mount and demount feature streamline the tool change process, enhancing efficiency for both professional and DIY tasks Easy To Install - With a dual-threaded head design, this