Check the listing for details. Interapid 312 Dial Test Indicators Ruby Contact Point Measuring Insert 74.105996. Condition: New. Listed at 17.48 USD. Ruby Ball Tip Measuring Insert for Interapid 312 Dial Test Indicators, 0.65" Length, 0.08" ball Diameter Contact point for use with Brown & Sharpe Interapid 312 series dial test indicators. Ruby ball tip for light weight, wear resistance, stability with changes in temperature, suitable for delicate and silicon carbide surfaces, and non-magnetic and non-conductive properties for use in Electrical Discharge Machining (EDM) processes . Package:1 X Contact Points We have focused on measuring instruments and have been in the industry for 20 years. PaymentWe accept payment via Paypal only.Payment must be made within 5 days.Delivery details1.We ship to your eBay or Paypal address. Please make sure your eBay and Paypal address is correct before you pay.2.Items will be shipped within 1-2 business day when we received payment.3.Delivery time depends on destination and other factors;About usWe strive for 100% customer satisfaction!We greatly appreciate your Five Stars POSITIVE feedback. Please do NOT leave negative or neutral feedback without any contact. It 's very important to us, Thanks a lot!