the commonly used standard length of hacksaw blade is
Hacksaw The most common blade is the 12 inch or 300 mm length. Hacksaw blades have two holes near the ends for mounting them in the saw frame and the 12 inch / 300 mm dimension refers to the center to center distance between these mounting holes.[3]
Swiss Army knife There are various models of the Swiss Army Knife with different tool combinations. Though Victorinox doesn't provide custom knives, they have produced many variations to suit individual users.[11]
Engagement ring In Western countries, it is customarily worn on the left hand ring finger, though customs vary across the world.
Craig MacTavish He is notable as the last NHL player to not wear a helmet during games.[1][2][3]