The DW 1-1/4-6IN QC CARBIDE ARBOR 1/2 from IRWIN Industrial Tool is a premium quick-change carbide arbor designed for efficiency. This arbor features a 1/2 inch shank and is compatible with 1-1/4 inch bits, making it ideal for various drilling tasks. Its carbide construction ensures durability and resistance to wear, providing long-lasting performance. The quick-change feature allows for rapid bit changes, enhancing workflow on the job site. This arbor meets industry standards, making it a reliable choice for professionals and serious DIY enthusiasts.