MAHR 3017630 T7W Piston Probe Arm Tip, 14MM Long, 0.5MM Dia. Ruby Ball. Brand: Mahr ID#: 3017630-MHR |MFGID: 3017630 Your Price: $615.65 Quantity discounts available QuantityPrice Return Policy Qty -+ Add to Cart Request Info Questions?CallCall Us864.433.9771|Mon-Fri 8-5 EST Share Print Product Info Product Information Description Mahr 3017630 T7W Piston Probe Arm Tip, 14mm Long, 0.5mm Dia. Ruby Ball.