Item Type: Connecting Rod_x000D_Material: Cast aluminum_x000D_Model: 12.7x22x79mm_x000D_Small Hole Diameter: Approx. 12.7mm / 0.5in_x000D_Large Hole Diameter: Approx. 22mm / 0.9in_x000D_Center Distance Between Two Holes: Approx. 79mm / 3.1in_x000D_Shortest Distance Between Two Holes: Approx. 61.65mm / 2.4in_x000D_Purpose: Air compressor and pump accessories 1The surface of the casting has been sandblasted, and no casting defects such as sand holes, cracks, looseness, slag inclusions, etc. 2The casting size tolerance is CT6 level specified in GB6414, and the wrong value is not more than 1, which is very stable 3Come with strong rigidity, especially the big head, has enough rigidity to meet the fatigue strength requirements 4This air pump connecting rod is lightweight, small inertia, and durable, practical and easy to use 5Made of excellent cast aluminum material, suitable for air compressor and air pump accessories1 x Connecting Rod