Based on this product's specifications, here are some alternatives and similar models
Irwin Twist Drill Bit 8.5 mm 10502226, single-piece metal/drilling bit
Summary description:
Irwin twist drill bit model 10502226 with an 8.5 mm diameter, supplied as a single piece. Designed for standard drilling tasks, this twist drill bit is suitable for use in portable drills and drill presses for creating holes in common materials. It serves general-purpose metal and construction drilling where an 8.5 mm hole is required.