Rack-A-Tiers 72134P #1 lockHARD Bit for Phillips/Slot Combination, 4” (Purple) Phillips/Slot combination screws were meant to be the universal choice. For decades it has been manufactured, but no one had the perfect tool for these screws – until now. The lockHARD Bit from Rack-A-Tiers tackles these screws by combining the two types of heads, and the surprising result is that the fastener and driver become un-strippable. No More Stripping! The Phillips/Slot screw has the benefit of using either the square drive or the flat head screwdriver as a means of fastening. But even with these options, the screw is often stripped out. The lockHARD™ bit has two strategically placed wings on the sides of its square bit end. This allows it to lock into place and makes sure you NEVER strip another screw. Rack-A-Tiers® Rack-A-Tiers Manufacturing designs and distributes innovative, specialty electrical tools. It all started in 1994 when two professional electricians envisioned a better way to get the job done. From that vision, came the Rack-A-Tiers Wire Dispenser – the company’s first product that is now used by hundreds of thousands of electricians all over the world. But, that was only the beginning. The success of the original Rack-A-Tiers Wire Dispenser inspired the company to develop and bring to market more innovative solutions to help electricians do their jobs faster, easier, and safer. Today, Rack-A-Tiers Manufacturing offers a portfolio of over 140 quality products, each solving real problems that electricians face every day.