Features 1、The connecting rod crankshaft size is standard, it is an accurate air compressor air pump accessory. 2、The casting size tolerance is CT6 level specified in GB6414, and the error value is not more than 1. 3、Made of high‑quality cast aluminum material, light and portable, small inertia, and corrosion resistance. 4、The surface is sandblasted, and there are no casting defects such as sand holes, cracks, looseness, and slag inclusions. 5、The connecting rod has strong rigidity, has sufficient fatigue strength requirements, and the overall performance is stable. Specification Item Type: Connecting Rod Crankshaft Material: Cast aluminum Model: 12x23x89mm Small Hole Diameter: Approx. 12 ± 1mm/ 0.5 ± 0.04in Large Hole Diameter: Approx. 23 ± 1mm / 0.9 ± 0.04in Two Holes Center Distance: Approx. 89 ± 1mm / 3.5 ± 0.04in Two Holes Shortest Distance: Approx. 71.5mm / 2.8in Purpose: Air compressor air pump accessories Package List 1 x Connecting Rod Crankshaft