This novel style of collar clamp enables the user to fabricate a unique, oddball bore into the blank center. The flats on the perimeter allow for the collar clamp to be held in position or turned for better assembly control. Once the custom bore is added, an additional saw cut is needed to separate the two halves. Remove the two clamping screws before making these modifications. This clamp has been designed and fabricated by BaneBots, and proudly sold through AndyMark. Specifications: