Traditional Depth Gauge Micrometer
Features890 Series:Fixed depth rod, 6.8mm diameter 63.5mm / 2 1/2" base length Speeder type ratchet Lock screw891 Series:Interchangeable depth rods, 4mm diameter 63.5mm / 2 1/2" base length892 Series: As 891 Series except for: 100mm / 4" base lengthVisit the Bowers Group website for more information on Traditional Depth Gauge Micrometer