CRKT Big Boy Driver Tool 9915 Black Aluminum, bit driver, Joe Wu design

The CRKT Big Boy Driver Tool 9915 Black Aluminum is a cool bit driver designed by Joe Wu of Scout Tools. Made of lightweight aluminium, and fitted with a ball bearing at the end, so you can operate it properly. You hold that part to your palm for stability, which means you have a lot of control over the bit. The bit holder has a 6.35 mm (1/4"") connection and comes with an additional 4 mm bit adapter for more precise screwdriving tasks.