Description
Turn precise 90-degree square shoulders on cylindrical lathe projects. The Magnum THIC38AR8 grips 3/8″ triangular carbide inserts securely using a hardened steel body and a 1/2″ square shank.
Features
- Hardened Steel Construction – Ensures stable support behind the insert during turning operations
- Square Shoulder Profile – Angled to machine clean, sharp corners on stepped cylindrical parts
Specifications
- Shank Size: 1/2″ Square
- Insert Compatibility: 3/8″ Triangular
- Carbide Grade: C-6
- Supplier Part Number: 250-1422
- KMS Product Code: MAG-THIC38AR8
Common Shop Applications
- Turning square shoulders on stepped metal shafts
- Holding carbide inserts rigidly for precision lathe turning
Compatibility
- Uses Magnum 3/8″ C-6 Grade Carbide Inserts (MAG-CI38)
- Uses Magnum 3/8″ C-6 Grade TiN Coated Inserts (MAG-CIT38)
Recommended Shop Add-Ons
- Upgrade your cutter life with Magnum TiN Coated Carbide Inserts
- Mount it securely in a Magnum Quick Change Tool Post
Frequently Asked Questions
Q: What size inserts does this holder use? A: This holder requires 3/8″ triangular carbide inserts.
Q: What is the primary function of this tool holder? A: It is designed specifically for turning metal to a precise square shoulder.









