A versatile self-centering 4-jaw chuck for the Proxxon FD 150/E lathe, designed to handle cylindrical, square, and octagonal workpieces with high accuracy. Reversible jaws give you both inside and outside clamping capability in a single chuck — no need to swap chuck types for different stock profiles. Specifications: Compatible with: Proxxon FD 150/E lathe Jaw type: self-centering (all 4 jaws move simultaneously) Clamping range — inside (with reversed jaws): 1–20mm Clamping range — outside: 20–50mm Chuck diameter: 50mm Workpiece profiles supported: Cylindrical stock Square stock Octagonal stock Proxxon No. 24158 Works Well With: Precision Lathe FD 150/E — the compatible host machine for this chuck 6-Piece Turning Tool Set for FD 150/E — matched cutting tools for the FD 150/E Drill Chuck for FD 150/E — tailstock drilling to complement lathe turning Collet Set ER 11 for FD 150/E — precision round-stock workholding alternative Chip Collection Tray with Splash Guard for FD 150/E — keep your workspace clean during turning operations Proxxon 3-Piece HSS Center Drill Set (No. 24630) — accurately center workpieces before drilling or turning Returns can only be accepted for unused product in its original packaging. In addition to the returned item/items, a copy of the original packing slip or invoice is required. If proper paperwork is missing, PROXXON Inc. will not issue a credit. For warranty claims please call 1-877-776-9966. Please see our return and refund policy here. California Residents Prop 65 Information WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.