The aluminum gauge ensures consistent barrel placement during the mill and fit procedure. The hole in the gauge allows for the placement of a dial indicator on the barrel, ensuring it remains properly aligned while verifying correct lock-up. Our gauge incorporates a precision-milled slot designed to securely position the 1911 barrel squarely, facilitating expedited and precise setups for cutting the hood's length and sides The aperture in the gauge facilitates the placement of a dial indicator on the barrel, ensuring precise alignment verification during the assessment of proper lock-up integrity Utilize this precision tool to ensure accurate lock-up by stabilizing the barrel during milling and fitting processes The slots are precisely machined to 0.362 inches (9.1mm) and 0.369 inches (9.3mm)