Tool coupling having serrated surfaces adapted to be pulled into meshing relationship

A tool coupling comprising:

• a first body including a first surface having a first serration formed therein, a first hole extending through the first surface and defining a first axis, and a side surface having a second hole extending therethrough and intersecting the first hole and defining a second axis, the first surface oriented at a ninety degree angle with respect to the first axis;
• a second body including a second surface facing the first surface and including a second serration configured to mesh with the first serration, the second surface oriented at a ninety degree angle with respect to the first axis the second body further including a pulling member projecting from the second surface and extending into the first hole, the pulling member including a plurality of first teeth;
• and
• a clamping mechanism disposed in the second hole and including a clamp member movable toward and away from the pulling member, the clamp member including a plurality of second teeth arranged to engage the first teeth to displace the second body toward the first body in a manner bringing the first and second serrations into meshing engagement with one another;
• a pitch of the first and second teeth being greater than a pitch of the first and second serrations, and being more than double a depth of the first and second serrations, a depth of the first and second teeth being greater than the depth of the first and second serrations.