1 Types of Gutters and How to Prepare for an Install. 2  Advice on Gutters and Downspouts. 3  Tips for Cleaning and Repairing Gutters.  Outdoor Spring Maintenance Tips.
One mil is 1/000th of an inch. A sheet of paper is 4/1000ths of an inch thick, so 10 mil has the thickness of 2 1/2 sheets of paper. A mil is not to be confused with a millimeter(mm). On average human hair is 100 microns or .004 inches. 10 mil is the width of about 2 and a half human hairs.
Guard Lengths. While guard lengths may vary slightly between clipper brands, a length 1 guard will cut your hair to about 3 millimeters, or 1/8 of an inch. With each whole comb number, the length of your haircut will increase by 3 to 4 millimeters, depending on your clipper brand. A length 10 guard will cut your hair to between 30 and 32 millimeters, or about 1 1/4 inches. A clipper with no guard will remove your hair at the skin.