Description
Secure cylindrical stock for turning operations. The Magnum C3J5PB is a self-centering 5-inch scroll chuck featuring a plain back mount for adaptation to various metal lathe spindles.
Features
- Self-Centering Scroll – Adjusts all three jaws simultaneously for quick setup.
- Two Jaw Sets – Includes removable inside and outside jaws to clamp various workpieces.
- Plain Back Mount – Requires a custom backing plate to fit your specific lathe spindle.
Specifications
- Chuck Diameter: 5″
- Jaw Configuration: 3-Jaw, Self-Centering
- Mount Type: Plain Back
- Supplier Part Number: 71195
- KMS Product Code: MAG-C3J5PB
Common Shop Applications
- Clamping round bar stock for turning and facing.
- Securing pipe and tube for internal boring.
Includes
- (1) 5″ 3-Jaw Chuck
- (1) Set of Inside Jaws
- (1) Set of Outside Jaws
- (1) Chuck Key
Recommended Shop Add-Ons
- Lathe Backing Plate
- Dial Indicator
Frequently Asked Questions
Q: Can I bolt this directly to my lathe? A: No, this is a plain back chuck and requires a separate backing plate machined to match your lathe’s spindle.
Q: Does it come with reversible jaws? A: It comes with two distinct sets of jaws (one inside set and one outside set) rather than a single set of reversible jaws.









