5C Collet Chuck And Holder Kit With Semi Finished Adapter For Lathe Tool Holder One And Three Quarters Inch Thread 8 Beefy Plain Back Recessed Three Mounting Holes M8 Back Plate Four Point Two Five Bolt Pattern High Precision 0.0004 To 0.0006 TIR
✔️ 0.0004-0.0006 TIR, 4.25 in bolt pattern, 3 mounting holes
This 5C Collet Chuck and Back Plate Kit is designed for lathe tool holders. It includes a semi-finished back plate and mounting hardware, letting you finish surfaces for precise alignment in typical workshop machining tasks.
✅ Chuck outside diameter: 5 in (127 mm); Plain back, recessed 3.740 in x 0.184 in deep (94.9 mm x 4.67 mm)
✅ Chuck mounting holes: diameter 0.35 in (8.9 mm); bolt pattern 4.25 in (108 mm)
✅ Back plate: M8 threaded holes; semi-finished 1-3/4 in x 8 thread; bolts included
✅ Max RPM: 6000; Accuracy: 0.0004-0.0006 TIR
✅ Fits 5C collets from 1/16 in to 1-1/8 in
✅ 3-pinion gear design improves opening/closing accuracy
💡 What is a handy 5C collet chuck with back plate used for in a precision lathe setup?
It’s a handy upgrade for securing round stock in a lathe with reliable alignment and repeatable results.
- Improves grip and concentricity with standard 5C collets (1/16" to 1-1/8") - Reduces runout thanks to 3-pinion gear design and solid back plate alignment - Supports higher RPMs safely when properly mounted (up to 6000 RPM) - Lets you finish the back plate and front surface on your lathe for best TIR ✝️