Rack-A-Tiers 70160GP1 6” #1 Packaged Robertson® Square Bit (Green) Pick the right bit the first time! Drill bits come in a wide assortment of types and sizes that are required for many different applications. This means that as an installer your tool box is probably full of them. Digging through the multitude to find the right one can be a hassle, so that’s why Rack-A-Tiers developed Racky Bits – a line of color coded bits to make your job easier. Color Coded Bits Color coding – it’s such a simple concept, but works so well. Racky Bits are easier to use and harder to lose, and ultimately make your job much simpler. They’re also the most popular color coded bits on the market, period. Hardened Construction If color coding isn’t already enough to convince you, genuine Robertson Racky Bits™ have hardened tips that fit better and last longer than other bits.