These entries are kept together with their family comparisons. Their dimensions are code-table interpretations; no exact manufacturer product is established by these entries.
Designation reference
SNMA 120404
Inscribed circle
12.7 mm
Thickness
4.76 mm
Corner radius
0.4 mm
radius: 0.8 → 0.4 mm. The nominal IC and thickness are unchanged. Matching nominal envelope does not confirm holder compatibility.
The linked product has a different radius. It is a comparison, not a replacement recommendation. Obtain a full manufacturer designation for SNMA 120404 before ordering.
Designation reference
SNMA 120416
Inscribed circle
12.7 mm
Thickness
4.76 mm
Corner radius
1.6 mm
radius: 1.2 → 1.6 mm. The nominal IC and thickness are unchanged. Matching nominal envelope does not confirm holder compatibility.
The linked product has a different radius. It is a comparison, not a replacement recommendation. Obtain a full manufacturer designation for SNMA 120416 before ordering.
Designation reference
SNMA 190608
Inscribed circle
19.05 mm
Thickness
6.35 mm
Corner radius
0.8 mm
radius: 1.2 → 0.8 mm. The nominal IC and thickness are unchanged. Matching nominal envelope does not confirm holder compatibility.
The linked product has a different radius. It is a comparison, not a replacement recommendation. Obtain a full manufacturer designation for SNMA 190608 before ordering.
Designation reference
SNMA 190616
Inscribed circle
19.05 mm
Thickness
6.35 mm
Corner radius
1.6 mm
radius: 1.2 → 1.6 mm. The nominal IC and thickness are unchanged. Matching nominal envelope does not confirm holder compatibility.
The linked product has a different radius. It is a comparison, not a replacement recommendation. Obtain a full manufacturer designation for SNMA 190616 before ordering.
Designation reference
SNMA 190624
Inscribed circle
19.05 mm
Thickness
6.35 mm
Corner radius
2.4 mm
radius: 1.2 → 2.4 mm. The nominal IC and thickness are unchanged. Matching nominal envelope does not confirm holder compatibility.
The linked product has a different radius. It is a comparison, not a replacement recommendation. Obtain a full manufacturer designation for SNMA 190624 before ordering.
Understand SNMA geometry and selection limits
SNMAFamily structure
Cylindrical hole · no chipbreaker in base type. Family proportions are illustrative; choose a specification for dimensions. Dashed circles are mounting symbols, not bore dimensions. Chipbreaker, edge preparation, tip construction and coating are not depicted. This is not a product photograph.
What distinguishes SNMA
Base configuration
Cylindrical fixing hole; no chipbreaker in the base type.
Tolerance symbol M identifies a class. Use the applicable product drawing for acceptance limits.
These families share the outline letter S. Differences in clearance, tolerance and mounting remain relevant even when IC matches.
Choose the comparison that matches your question
This family contains 5 size/thickness groups: 09T3, 1204, 1506, 1906, 2507. Compare radii within one group first; moving between groups can change the insert-seat envelope.
Shape and clearance do not identify workpiece material, coating, grade or cutting data. Use an exact catalogue example when available; otherwise confirm a maker’s full designation before ordering.
Aluminum Machining, PDF page 18 / printed page 16, exact designation row. Exact geometry row and IC20 availability mark in this catalogue. Cutting conditions require the applicable product data; no stock check.
Aluminum Machining, PDF page 18 / printed page 16, exact designation row. Exact geometry row and IC20 availability mark in this catalogue. Cutting conditions require the applicable product data; no stock check.
Shape, clearance, configuration and nominal code tables only. No grade, usable-edge count, catalogue availability or acceptance tolerances inferred. Values labeled “code table” are interpretations of a designation, not measurements of a delivered product. Product-row values are reported separately, including differences in printed precision.