Coaxial Centering Indicator For Milling And CNC Machines - Quick No-Fuss Test Dial For Easy, Accurate Centering In Horizontal And Vertical Setups, Internal And External Diameters, Easy Feeler Swap
✔️ 5.5 in body, 0.375 in shank, 0.875 in long, 1/8 in feeler
This coaxial centering indicator is a precise test dial designed for quick, accurate center finding in boring and milling setups on horizontal or vertical machines. It lets you center work while the spindle rotates, keeping both hands free for precise table positioning, and it works across internal and external diameters with easy feeler swaps.
✅ Body length 5.5 in (139.7 mm)✅ Shank diameter 0.375 in (9.525 mm), length 0.875 in (22.225 mm)
✅ Feeler ball diameter 0.125 in (3.175 mm)
✅ Internal dia range 5/32 in (4.0 mm) to 4-1/4 in (107.95 mm); External 0 to 4-1/4 in (0-107.95 mm)
✅ Spindle rotation up to 800 RPM
✅ Locating accuracy 0.0002 in
✅ Package includes restraining rod, center point feeler, 2", 4", and 6" straight feelers, 2", 4", and 6" curved feelers
| Dimension | Inches | Millimeters |
|---|---|---|
| Body length | 5.5 in | 139.7 mm |
| Shank | 0.375 in dia x 0.875 in long | 9.525 mm dia x 22.225 mm long |
| Feeler ball | 0.125 in | 3.175 mm |
| Internal dia range | 5/32 in to 4-1/4 in | 4.0 mm to 107.95 mm |
| External dia range | 0 to 4-1/4 in | 0 to 107.95 mm |
💡 What is a coaxial centering indicator used for in milling and CNC setups? It helps quickly locate true center during boring and milling tasks and keeps the operator’s hands free for precise table positioning. - handy for precise center alignment in boring and milling - handy for both horizontal and vertical machining tasks - handy for quick swaps between internal and external diameters - handy for reducing setup risk and improving repeatability