A mid-length socket is a 3/8 inch socket used to reach ova threaded stud to access the fastener (nut) in spaces where deep sockets will not fit. Primarily used under the hood in front wheel drive vehicles.
Mig welder
Mig welders use a continuous wire rather than a welding rod, exhibit better performance on thinner materials (down to 24 gauge) and are easier to use than arc welders. A trigger controls the feeding of the welding wire, providing better control and an improved feel for the work. Welding with solid welding wire (using compound shielding gas) gives a clean weld, free of slag and spatter.
Mil
A unit of measure equal to 0.001 inches (1/1000 in.) used to indicate the thickness of a roofing membrane.
Mild steel
Steel used to produce structural beams and brackets, nails, etc. due to its low carbon content and lack of special alloying elements.
Mildew
Any fungus that attacks various plants or appears on a material when exposed to dampness, which results in a thin, furry, whitish discoloration.
Mildew resistance
The ability of a coating to resist the growth of molds and mildew. Mildew is particularly prevalent in moist, humid, and warm climates.
Mildewcide
Chemicals which are poisons, added to coatings such as paint, so that it retards the growth of mildew by killing it on contact.
Mile, nautical
Linear measurement equal to 6,080 feet, which is used to denote international sea and air distances.
Mile, statute
Linear measurement equal to 1,760 yards or 5,280 feet, which is the common measurement of U.S. linear surface.
Milestone
(1) A significant or important event. (2) Pillar set up to denote the distance in miles to or from a certain place.