MILLING INSERT - FACE_SEEN
Caution
Product Description
Single-sided square face milling insert SEEN 1203AFFN by Dormer Pramet (Pramet brand) with sharp cutting edges and a plane rake surface, for a maximum depth of cut of 6.5 mm. Made of fine-grained WC-Co carbide with M8330 PVD coating for precise milling of steel in the ISO P20-P40 range.
Designation (ISO 1832)
- S - square insert shape
- E - 20° clearance angle
- E - tolerance class E
- N - without fixing hole and without chipbreaker
- 12 - insert size (cutting edge length 12.7 mm)
- 03 - insert thickness 3.18 mm
- F - sharp cutting edge
- M8330 - Pramet PVD-coated milling grade
Grade M8330
According to Dormer Pramet, M8330 is a versatile milling grade for finishing to roughing, even in unfavourable conditions, and can be used with or without coolant. It features a nano-layered PVD coating on a fine-grained WC-Co carbide substrate. For this insert, the application range is ISO P20-P40 (steel).
Usage notes
- Use only in face milling cutters designed for SEEN 1203 inserts, and clean the pocket and clamping surfaces before indexing.
- Keep the depth of cut between 0.5 mm and 6.5 mm.
- Sharp-edged inserts suit light, precise cuts and a fine surface finish; for heavily interrupted cuts or cast iron, a rounded and faceted edge (AFSN) is more robust.
- Dormer Pramet data for M8330 milling inserts indicates that coolant has a slightly negative effect on tool life, so dry milling is generally preferred.
- Carbide is hard but brittle: avoid impact on the cutting edges when handling, and wear safety glasses during machining.
SEEN 1203AFFN:M8330 is a single-sided indexable face milling insert from the Pramet range of Dormer Pramet. It has a square (S) shape with a 20° clearance angle (E), a plane rake surface without chipbreaker, and sharp cutting edges. With a 12.7 mm inscribed circle and 3.18 mm thickness, it handles a maximum depth of cut of 6.5 mm.
Key features
- Sharp cutting edges for a light, free-cutting action, low cutting forces and a clean machined surface.
- Indexing accuracy to ISO tolerance class E for reliable seating in the cutter and repeatable results after every index.
- Fine-grained WC-Co carbide substrate with M8330 PVD coating for a balance of toughness and wear resistance.
- M8330 is a nano-layered PVD milling grade with increased resistance to thermal cracks, improved toughness and greater impact strength; it replaced the earlier 8230 grade.
Applications
Face milling of steel within ISO application range P20-P40 where high surface quality is required, from medium-duty to finishing operations.
| Brand | Dormer Pramet (Pramet) |
|---|---|
| Series | SEEN |
| Model | SEEN 1203AFFN:M8330 |
| Insert type | Single-sided face milling insert |
| Insert shape | S - square |
| Clearance angle | E - 20° |
| Tolerance class | ISO E |
| Cutting edge | Sharp |
| Rake surface | Plane, without chipbreaker |
| Substrate | Fine-grained WC-Co carbide |
| Grade / coating | M8330, PVD coated |
| Application range | ISO P20-P40 (steel) |
| Parameter | Value |
|---|---|
| Product name (ISO) | SEEN 1203AFFN:M8330 |
| Ordering code (ANSI) | SEEN 42AFFN:M8330 |
| Inscribed circle diameter (IC) | 12.7 mm |
| Cutting edge length (L) | 12.7 mm |
| Insert thickness (S) | 3.18 mm |
| m-dimension (M) | 1.6 mm |
| Depth of cut minimum (APMN) | 0.5 mm |
| Depth of cut maximum (APMX) | 6.5 mm |
| Insert clearance code and angle | E 20° |
| Chipbreaker | No chipbreaker |
| Grade | M8330 |
| Net weight | 5.983 g |
Top view: square (S) insert with equal sides, cutting edge length (L) 12.7 mm, inscribed circle diameter (IC) 12.7 mm and reference dimension m (M) 1.6 mm.
Side view: insert thickness (S) 3.18 mm; the flanks below the cutting edges are relieved at a 20° clearance angle (E), making it a single-sided insert (positive geometry).
Rake face: flat (plane rake surface) without chipbreaker, with sharp cutting edges. The insert has no central fixing hole (ISO code N) and is held in the cutter pocket by a clamp.
How to choose the right SEEN insert
| Model | Cutting edge | Grade | Application range | Max. depth of cut |
|---|---|---|---|---|
| SEEN 1203AFFN:M8330 | Sharp | M8330 (PVD) | Steel P20-P40 | 6.5 mm |
| SEEN 1203AFSN:M8330 | Rounded with facet | M8330 (PVD) | Steel P20-P40, cast iron K20-K40 | 6.5 mm |
| SEEN 1203AFFN:M8340 | Sharp | M8340 (PVD) | Steel P25-P50 | 6.5 mm |
| SEEN 1504AFSN:M8330 | Rounded with facet | M8330 (PVD) | Steel, cast iron | 9.0 mm |
- Choose SEEN 1203AFFN:M8330 for free-cutting, low-force milling of steel where surface finish and accuracy matter.
- Choose the AFSN version when edge strength is the priority, for example in cast iron or interrupted cuts.
- Choose grade M8340 when a tougher grade is needed (application range P25-P50); M8330 covers P20-P40.
- Choose SEEN 1504 when a depth of cut above 6.5 mm (up to 9.0 mm) is needed.