Adjustable diameter step pin apparatus

An adjustable diameter step pin system, comprising:

• a collet having a collet inside diameter;
• a body element comprising:
• a knob comprising a plurality of threaded finish structures;
• and
• a precision ground shaft element attached to the knob, the knob and the precision ground shaft element define a longitudinal slot;
• and
• a head element comprising:
• a thumb screw portion configured to rotate to alter a predetermined size of the collet about the collet inside diameter;
• a threaded portion configured to engage with the plurality of threaded finish structures when assembled with the body element;
• and
• a collet chamber configured to couple to the collet, wherein the collet coupled to the collet chamber is received by the body element along the longitudinal slot;
• wherein the collet inside diameter of the collet is altered by rotating the thumb screw portion of the head element to engage the threaded portion of the head element into the plurality of threaded finish structures while keeping the body element sturdy.

A method of assembling an adjustable diameter step pin apparatus, the method comprising:

• coupling a collet to the adjustable diameter step pin apparatus, wherein the adjustable diameter step pin apparatus comprising:
• a body element comprising a plurality of threaded finish structures, wherein the body element is configured to receive the collet along a longitudinal slot;
• a head element comprising:
• a thumb screw portion configured to rotate to alter the collet;
• and
• a threaded portion configured to engage with the plurality of threaded finish structures when assembled with the body element;
• and
• rotating the thumb screw portion of the head element to engage the threaded portion of the head element into the plurality of threaded finish structures while keeping the body element sturdy.