Brownells Magna-Tip Screwdriver Bit Set Features The Brownells Magna-Tip Screwdriver Bit Set for the Marlin 336 includes six bits numbered 120-3 180-3 180-4 240-3 270-3 and 300-4 each ground to match the exact screw slots found on this specific rifle. Precision grinding gives each bit an optimal blade-to-slot fit reducing the likelihood of slippage or marring that can happen with generic ill-fitting screwdrivers. Because these bits are model-specific rather than a general-purpose set they take much of the guesswork out of disassembly and reassembly for anyone servicing a Marlin 336. This kind of precise fit matters most on visible screws where a single slip can leave a permanent mark on an otherwise clean firearm. Constructed from hardened steel the bits are built to hold their edge and resist rounding over repeated use in a shop or home workbench setting. The set is sized for use with Brownells Magna-Tip handles which are sold separately and allow the same bit system to service a wide range of other Winchester and Marlin models. Gunsmiths and hobbyists alike benefit from the durability and long-term consistency of the Magna-Tip system compared to disposable generic bit sets. For anyone who regularly works on Marlin 336 rifles this bit set is a straightforward way to protect factory finishes while performing routine maintenance. Brownells Magna-Tip Screwdriver Bit Set Specifications Manufacturer: Brownells Model: Magna-Tip Screwdriver Bit Set Compatible Hosts: Marlin 336 Bit Numbers: 120-3 180-3 180-4 240-3 270-3 300-4 Material: Steel Number of Pieces: 6 Length: 1.25 Width: 0.25 Available At: GrabAGun