Description
Harlingen
Harlingen GTN Parting & Grooving Carbide Insert — 4mm (Pack of 10)
Part No: GTN-4 | Barcode: 9346967106623 | Brand: Harlingen
Pack of 10 carbide GTN parting inserts in 4mm cut width, grade HC2115 — designed for semi-finishing of general purpose steel in NCIH-style cut-off blades. Two cutting edges per insert and a clean ground geometry for chatter-free parting.
4mm Cut Width
Grade HC2115
Pack of 10
Carbide
Semi-Finishing
2 Edges Per Insert
Suited For
General Purpose Steel
Carbon Steel
Alloy Steel
Key Features & Benefits
- 4mm cutting width — Matches NCIH parting blades with a 4mm seat — direct replacement for worn or chipped factory inserts.
- Grade HC2115 carbide — Tuned for semi-finishing of general purpose steel — balances edge toughness with wear resistance.
- Compatible with NCIH32-4 — Drops into Harlingen and generic NCIH parting blades using this width without modification.
- Two cutting edges per insert — Index to a fresh edge once one wears — effectively 20 cuts per pack of 10.
- Recommended cutting parameters — 150-200 m/min surface speed, 0.05-0.30mm/rev feed, 0.3-2.0mm depth of cut.
When to Use This Insert
Choose GTN-4 when you need a fresh-edge replacement insert for a 4mm NCIH parting blade. Ideal for general-purpose lathe work in mild and medium-carbon steels; for stainless or hardened materials a tougher grade may suit better.
Authorised Australian Distributor — This product is sourced via Australia’s Harlingen distributor Gamer Industries and is backed by full Australian warranty and local support.
Product Specifications
| Part No. | Cut Width | Compatible Blades | Pack Qty |
|---|---|---|---|
| GTN-2 | 2 mm | NCIH19-2, NCIH26-2 | 10 |
| GTN-3 | 3 mm | NCIH19-3, NCIH26-3, NCIH32-3 | 10 |
| GTN-4 ★ | 4 mm | NCIH32-4 | 10 |
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