Sold in a compact, 1 oz. bottle, McLube 1725L is a dry-film lubricant commonly used for instruments. Formerly known as McLube 444, McLube 1725L is the updated formula that does not contain the NPB solvent that is now considered hazardous to use. 
 
This field-friendly 1 oz bottle will last quite a while and includes an acid brush for application. When you run out, grab our 4 oz. refill!