It's incredible, the time you'd save if you didn't have to switch out your drill bit everytime you switched from a bolt to a screw in. With the Duo Star Bit, that time wasted is thing of the past. You won’t have to change out your impact bit when you use the Duo Star so dropping those pesky things or finding them in your pockets later won’t be a problem. This 2-in-1 bit works with both standard 8mm bolts and the T20 screws. So instead of botching that bit-switch and finding stray bits in the washing mashine, use the Duo Star to make route-setting as smooth as the route itself.


Attach this bit directly to your impact driver for seamless setting and stripping.


- A patent-pending, dual-tipped bit to prevent changing bits while setting with different bolts

- One-piece 2" and 3" bits attach directly to impact driver

- 1" insert bit with 3" magnetic bit holder also fits into impact driver

- Can screw in or out 8mm bolts

- Can screw in or out T20 screws

- To be used on the lowest torque/slowest speed setting of an impact driver

Duo Star Bit - 8mm and T20