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SNMG190624 Insert: Dimensions, Grades & Cross References

The SNMG190624 is an ISO 1832 indexable turning insert: a 90° square (S), 0° clearance, chipbreakers on both faces (double-sided), with inscribed circle d1 19.05 mm (0.75 in), thickness s 6.35 mm and 2.4 mm nose radius rε. Verify the full ordering code against the manufacturer catalogue before ordering.

Geometry deterministically derived from ISO 1832 Brand catalogue data cited per row
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Verified specification and original + equivalent grade options — reply within one business day.

d1 rε = 2.4 mm
Top-view schematic, not to scale. d1 = inscribed circle, rε = nose corner radius.

Key dimensions

Inscribed circle d1
19.05 mm (0.75 in)
Thickness s
6.35 mm (0.25 in)
Nose radius rε
2.4 mm (0.094 in)

ISO 1832 designation decoded

PositionMeaningValueExplanation
1 Insert shape S — Square insert, 90° cutting edge angle Shape family: square, 90°.
2 Clearance angle N — 0° 0° clearance (negative insert, usable on both sides)
3 Tolerance class M Medium tolerance class (as-sintered moulded insert, general turning)
4 Fixing / chipbreaker G Fixing hole, integral chipbreakers on both faces (double-sided insert)
5 Cutting edge length / IC (d1) 19 19 — IC 19.05 mm (0.75 in)
6 Insert thickness (s) 06 06 — 6.35 mm (0.25 in)
7 Nose corner radius (rε) 24 24 — 2.4 mm (0.094 in)
8 Cutting direction — Hand omitted — neutral / either-hand per catalogue.

Specification table

ISO designationSNMG190624
Insert shapeSquare insert, 90° cutting edge angle
Clearance angle0° — 0° clearance (negative insert, usable on both sides)
Tolerance classM — Medium tolerance class (as-sintered moulded insert, general turning)
Fixing / chipbreakerG — Fixing hole, integral chipbreakers on both faces (double-sided insert)
Inscribed circle d119.05 mm (0.75 in)
Thickness s6.35 mm (0.25 in)
Nose corner radius rε2.4 mm (0.094 in)
Cutting directionNeutral / hand omitted
Designation standardISO 1832, indexable insert designation for turning and copying tools

Source: ISO 1832 designation standard (geometry positions 1–8). Brand-specific rows below cite their manufacturer catalogue individually.

Cross-brand geometric interchange

Under ISO 1832, every insert carrying the core designation SNMG190624 shares identical geometry — shape, inscribed circle, thickness and nose radius — regardless of manufacturer. Letters after a dash (chipbreaker patterns, grade numbers) affect chip control and application band, not the pocket geometry, and are marked PARTIAL.

Kennametal — 10 catalogued ordering codes

Equivalent designationMatchNote
1600837
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02
1601079
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02
1601106
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02
1868611
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02
1870386
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02
3753545
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02
3753653
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02
5591915
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02
5698115
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02
7278007
ANSI: SNMG646RN
FULL
RN
Official catalogue ↗ · accessed 2026-10-02

Korloy — 5 catalogued ordering codes

Equivalent designationMatchNote
SNMG190624-GR NC3030
ANSI: SNMG646-GR
FULL
GR
Official catalogue ↗ · accessed 2026-10-02
SNMG190624-GR NC3120
ANSI: SNMG646-GR
FULL
GR
Official catalogue ↗ · accessed 2026-10-02
SNMG190624-GR NC3225
ANSI: SNMG646-GR
FULL
GR
Official catalogue ↗ · accessed 2026-10-02
SNMG190624-RM NC9125
ANSI: SNMG646-RM
FULL
RM
Official catalogue ↗ · accessed 2026-10-02
SNMG190624-RM NC9135
ANSI: SNMG646-RM
FULL
RM
Official catalogue ↗ · accessed 2026-10-02

Match levels: FULL = same geometry and equivalent grade · PARTIAL = geometry matches, chipbreaker/grade differs · VERIFY = commonly quoted, confirm against the target catalogue.

Grade cross-reference (ISO 513)

Geometry swaps are safe; grade swaps need review. Grades are mapped only within the same ISO 513 workpiece group and application band, and every mapping is cited. Verified catalog mappings for this geometry are added row by row.

Grades catalogued for SNMG190624

Kennametal — 10 grade offerings

GradeChipbreakerISO 513CoatingOperationSource
KC8050 RN — — — Catalogue ↗ (2026-10-02)
KC9025 RN — — — Catalogue ↗ (2026-10-02)
KC9140 RN — — — Catalogue ↗ (2026-10-02)
KC9110 RN — — — Catalogue ↗ (2026-10-02)
KC9125 RN — — — Catalogue ↗ (2026-10-02)
KCP25 RN P / K — — Catalogue ↗ (2026-10-02)
KCP30 RN P — — Catalogue ↗ (2026-10-02)
KCP40B RN — — — Catalogue ↗ (2026-10-02)
KCP25B RN — — — Catalogue ↗ (2026-10-02)
KCP25C RN — — — Catalogue ↗ (2026-10-02)

Korloy — 5 grade offerings

GradeChipbreakerISO 513CoatingOperationSource
NC3030 GR — CVD — Catalogue ↗ (2026-10-02)
NC3120 GR — CVD — Catalogue ↗ (2026-10-02)
NC3225 GR — CVD — Catalogue ↗ (2026-10-02)
NC9125 RM — CVD — Catalogue ↗ (2026-10-02)
NC9135 RM — CVD — Catalogue ↗ (2026-10-02)

These are the manufacturers' own grade offerings for this geometry, each linked to its grade record.

Cross-brand grade equivalents

Equivalent gradeBrandMatchISO 513CoatingBasis / noteSource
4305 Sandvik Coromant VERIFY K / P CVD KC9110 CVD steel finishing; quoted in aftermarket chart. Acera Tool — carbide grade comparison chart (14 brands) (2026-09-28)
4325 Sandvik Coromant VERIFY K / P CVD KCP25C is CVD steel general-purpose; cross-listed in aftermarket chart, not confirmed in both official catalogues. Acera Tool — carbide grade comparison chart (14 brands) (2026-09-28)
235 Sandvik Coromant VERIFY M / P CVD KCP25C CVD general steel; quoted in aftermarket chart. Acera Tool — carbide grade comparison chart (14 brands) (2026-09-28)
1515 Sandvik Coromant PARTIAL M / P CVD CVD steel P30 / stainless M; same P+M dual-group coverage. TaeguTec — Grade Comparison Table (turning grades across 12 manufacturers) (2026-09-28)
4335 Sandvik Coromant PARTIAL K / M / P CVD CVD steel P25 medium; equivalent in comparison chart. TaeguTec — Grade Comparison Table (turning grades across 12 manufacturers) (2026-09-28)
4325 Sandvik Coromant PARTIAL K / P CVD CVD steel P15-P20 general; comparison chart equivalent. TaeguTec — Grade Comparison Table (turning grades across 12 manufacturers) (2026-09-28)
235 Sandvik Coromant VERIFY M / P CVD NC3225 CVD steel general; same P group, coating chemistry to verify. TaeguTec — Grade Comparison Table (turning grades across 12 manufacturers) (2026-09-28)
2220 Sandvik Coromant PARTIAL M CVD CVD stainless M general; equivalent in comparison chart. TaeguTec — Grade Comparison Table (turning grades across 12 manufacturers) (2026-09-28)

Match levels: FULL = same ISO 513 group, application band and coating family · PARTIAL = same band, different coating or edge prep · VERIFY = quoted in aftermarket charts, unconfirmed by both catalogues.

Applications & cutting conditions

Typical operations

  • roughing
  • facing
  • heavy turning
  • double-sided (more edges per insert)

Large inscribed circle — roughing and high-feed operations on rigid setups.

Workpiece materials

All ISO 513 workpiece material groups (P/M/K/N/S/H) depending on the selected carbide grade.

CVD-coated grades are typical for steel (P) and cast iron (K) general turning; PVD-coated grades are typical for stainless (M), superalloys (S) and finishing cuts. Always apply the manufacturer's cutting-data recommendation for the chosen grade.

Selection notes

Related selection guides: choosing the insert shape · negative vs positive geometry · R0.4 vs R0.8 vs R1.2 nose radius · finishing vs roughing chipbreaker codes · carbide grade by material · CVD vs PVD coatings · grade names across brands

Frequently asked questions

Need verified specs or sourcing for SNMG190624?

Send the ISO code (or a brand ordering number) and your workpiece material. We reply within one business day with the verified specification and original + equivalent grade options — no obligation.

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Reviewed & sources. Geometry per the ISO 1832 designation standard; brand-specific specifications cite the manufacturer catalogue shown on each row with version and extraction date. InsertBase is independent and is not an authorised distributor. Values must be verified against the current manufacturer catalogue before ordering. See the editorial & correction policy.