The Proxxon Spare Parting Tool Cutter (No. 24554) is a replacement HSS cutting blade for the Proxxon Parting Tool Holder & Tool (No. 24217), used with the PD 250/E Precision Lathe's quick-change tool post system. When the parting blade becomes dull or worn, this spare cutter restores full cutting performance without replacing the entire holder assembly. Dimensions: 12 × 3 × 85mm — matching the No. 24217 holder's blade slot exactly. Note: the parting tool holder (No. 24217) is sold separately and is not included. Specifications Part Number: No. 24554 Compatible holder: Parting Tool Holder No. 24217 Compatible lathe: PD 250/E Precision Lathe (No. 34002) Material: HSS (high-speed steel) Dimensions: 12 × 3 × 85mm Note: Parting tool holder (No. 24217) not included Works Well With Parting Tool Holder & Tool (No. 24217) — the holder this spare cutter fits Proxxon Precision Lathe PD 250/E (No. 34002) — the host lathe Quick-Change Tool Post (No. 24026) — the tool post system this holder mounts in 5-Piece Turning Tool Set (No. 24530) — complementary HSS turning tools for the PD 250/E Tungsten Carbide Insert Cutter Set (No. 24555) — carbide alternative for harder materials Self-Centering 3-Jaw Chuck (No. 24034) — workholding for parting operations Returns can only be accepted for unused product in its original packaging. A copy of the original packing slip or invoice is required. For warranty claims please call 1-877-776-9966. See our full return and refund policy. 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.