Our digital depth gages inspect the location of internal and external shoulder and grooves from the face of pin and box connections or other datum surfaces. The DG-1000 Series is available with the standard base, a 12″ base, and a 20″ base. These gages are available in ranges: 0 – 8”, 0 – 12″, 0 – 18″, and 0 – 24″.