from aluminum alloy, these tapered bits are designed to handle aluminum alloy, while the bright exterior depth stop ensures easy identification and durability Great for professional woodworkers, enthusiasts, and technicians requiring precise machining, this set caters to skill levels and project demands Enhances your toolkit with this multipurpose drill bit set, engineered for seamless and longevity in demanding environments, ensuring every task is completed with precisions and ease Great for furniture manufacturing, metalworking, and renovations projects, these countersink drill bits excelling in any setting requiring accurate counter bore processing precisions and efficiency with our 5Pcs Hexagonal Shank Countersink Drill Bit Set, feature a low friction depth stop for consistent drilling depth across various projects, Manufacturer: ERRORY