Hexagon Fractional Die, National Coarse, 5/16-In. x 18 Boss Use 1/2 gallon for small

Use 1/2 gallon for small bushes

sediment and rust particles from your water

designed for escape from an automobile

Adjustable up to 14 inches

Heightened emission control system durability*

Hexagon Fractional Die, National Coarse, 5/16-In. x 18 Boss Use 1/2 gallon for small5 16" x 18, national coarse thread, 1" hexagon fractional die, carbon steel, ideal for routine maintenance, repair work & for rethreading where high accuracy & tolerance thread is not critical, recommended for use with hexagon die stock, die can be used with a wrench or socket when space is limited, designed for hand threading work in a variety of materials.