Deep.See.Bits™ are bits with marking bands every ½” (in the Imperial-sized bits; 10mm in the metric-sized bits). They look like they could be a reasonable alternative to plastic or metal depth stops and the ever-popular masking tape. I recently tried to drill some shallow holes in plywood using a metal depth stop, and the drill flutes kept getting clogged because the depth stop prevented the drill from clearing. M.POWER®, from Wiltshire, England, makes Deep.See.Bits™ as HSS twist bits for hardwoods, metal, and plastics, or as carbon steel brad points specifically for woodworking. All bits are available in both metric and Imperial sizes. Japan Woodworker carries an eight-piece brad-point set (1/8″, 5/32″, 3/16″, 1/4″, 9/32″, 5/16″, 11/32″, and 3/8″) for $19.75, but it can be found online for $12.63.