Best way to enlarge #6 hole in EGW rail to #8?

[Black Sheep]

Just got an EGW pic rail for the Edge, and the receiver is drilled for 8-40 screws, but the rail is drilled for a #6 screw. I have a few step drills, but of course they aren't the right size. I'm just worried about not having it centered

 

[bruce_ventura]

Counter bore tools for #8 socket head screws are available from ENCO, MSC, etc. If the counterbore is shallow, you can use a drill press.

Beware the screws supplied by EGW are poor quality and the heads are prone to stripping. EGW and Brownells both sell higher quality screws.

 

[Black Sheep]

The rail is already counterbored for the screws, it just has a through hole to fit the #6 screws, and I need it to fit the #8 screws that I had EGW send with the rail.

 

[Browninglover1]

This is a super easy fix. Just drill out the holes to allow clearance for your size 8 screws. If you do it on a drill press the drill will actually follow the existing holes and you won't have to worry about them being misaligned.