Many here on the forum use 3M brand ScotchBrite pads for removing scratches and blending. Other options include very fine wet/dry sandpapers, and/or a carding wheel on a buffer or drill press. Be sure to use caution around sharp edges that need to be preserved, like the cylinder stop slots, for instance. Also remember to clean off any abraisive powder, debris, or grit that may come off during the cleaning process. This material can cause damage to internals.
The pads are usually available at home centers.
Here's an incomplete list of different "grits" available.....
SCOTCHBRITE GRIT CHART
3M Scotch Brite Nylon Pads:
7445 - White pad, called Light Duty Cleansing - (1000) 1200-1500 grit
7448 - Light Grey, called Ultra Fine Hand - (600-800) 800 grit.
6448 - Green (?), called Light Duty Hand Pad - (600) 600 grit
7447 - Maroon pad, called General Purpose Hand - (320-400) 320 grit
6444 - Brown pad, called Extra Duty Hand - (280-320) 240 grit
7446 - Dark Grey pad, called Blending Pad (180-220) 150 grit
7440 - Tan pad, called Heavy Duty Hand Pad - (120-150) 60(?)
Blue Scotch-Brite is considered to be about 1000 grit.
(The value inside the parentheses is directly from 3M.)
Less Aggressive --------> More Aggressive
7445 7448 6448 7447 6444 7446 7440
Finer Finish --------> Coarser Finish
Ret LE, FA Instr, S&W Armorer
Last edited by armorer951; 01-12-2017 at 12:36 PM.