6" OAL, Accurate up to 0.001", 0.015, 0.024, 0.025 & 0.04" Wide Flange, 0.05, 0.07, 0.2, 0.255 & 0.375" Groove Depth, Hard Chrome Steel Caliper Attachment Set - The Office Group
XiKe 2 Pcs 6208-2RS Double Rubber Seal Bearings 40x80x18mm, Pre-Lubricated and Stable Performance and Cost Effective, Deep Groove Ball Bearings.: Amazon.com: Industrial & Scientific