Heavy Duty 6 Inch Precision Indexing Spacer With Adjustable Chuck Rock Solid Worm Gear Rotary Base Sick Vernier Dial Accuracy Down To Ten Seconds Must Have Shop Tool For Any Serious Machinist
✔️ 1:90 drive ratio, 25 sec precision, adjustable mount base
This heavy duty indexing spacer combines a straight simole index with a rock solid worm geared rotary base for shop floor precision. It is typically used for milling, drilling, jig boring, and complex angle cuts where repeatable positioning matters. The single unit arrives fully assembled and ready to bolt onto your machine table immediately.
✅ 1:90 worm gear drive with 24 position index plate✅ 25 second indexing accuracy down to ten seconds reading
✅ Adjustable chuck concentricity at 0.0005 inch or 0.013 mm
✅ Base to chuck squareness rated at 0.0008 inch or 0.02 mm
✅ Face parallelism controlled at 0.0006 inch or 0.015 mm
✅ Flange concentricity sits at 0.0008 inch or 0.02 mm
✅ Through center hole measures 40 mm or 1.57 inches
✅ Overall center height stands at 122 mm or 4.80 inches
💡 How does a precision indexing spacer improve repeatability in manual machining setups? A quality rotary spindle adapter locks your workpiece firmly for dead accurate angular cuts. - The hardened steel worm mechanism prevents drift during heavy cutting passes. - Machinists rely on vernier dials to split circles precisely without guesswork. - Heat treated components keep tolerances tight even after years of heavy daily shop use.
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