General description The SIP 4" Chuck 3/4" x 16TPI for Wood Lathes is a heavy-duty 100mm 4-jaw self-centering chuck designed to securely clamp a workpiece, making it ideal for turning and various other applications. Technical specifications Chuck Diameter: Ø 4" (101mm) Spindle Thread Size: 3/4" x 16TPI Net Weight: 2.58 Kg Compatibility and accessories Comes with interchangeable jaw sets Supplied in a heavy-duty storage case Usage Perfect for home use, hobbyists, trade, and professional use.