Super Rotary Indexing Fixture 3900-2321, 8 Inch Precision Indexer for Milling and Machining, Built for Quick, Accurate Multi-Position Drilling, Boss-Level Precision, Cost-Effective Indexing Solution for Shop Floors

8-Inch Rotary Indexing Fixture for Milling and Drilling
✔️ 8 inch faceplate, 24-position index plate, 2-15/32 center hole

The 8-inch rotary indexing fixture is a high-precision indexing tool built for milling, drilling, jig boring, and other shop tasks. It delivers repeatable angular positioning for multi-step operations, with a robust design for demanding applications on shop floors.

✅ Maximum individual spacing error: 25 seconds
✅ Vernier reading: 10 seconds
✅ Squareness: 0.0008 inches (table base to chuck 90°)
✅ Base parallelism: 0.0004 inches (face to face)
✅ Mounting flange concentricity: 0.0008 inches
✅ Chuck concentricity: 0.0005 inches
✅ Center hole: 2-15/32 inches
✅ 8 inch faceplate; 24-position index plate with 15° increments
✅ Includes 3-jaw chuck and faceplate

💡 What is the purpose of an 8-inch rotary indexing fixture in milling and drilling operations?

This handy tool delivers precise, repeatable positioning for multi-step machining. - Provides 360° vernier ring for accurate readings and 10-second vernier adjustments. - Supports 8-inch faceplate and 24-position index plate for flexible setups. - Delivers tight tolerances with small squareness and base parallelism for accurate machining. ✝️