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Toolhelix›ISO insert code›VCGT 160404

VCGT 160404

What VCGT 160404 means, letter by letter: rhombic 35°, positive, 7° clearance, tolerance G, 40–60° countersunk hole, chipbreaker one side. Inscribed circle 9.525 mm, thickness 4.76 mm, nose radius 0.4 mm.

1 · SHAPERhombic 35°V
2 · CLEARANCE7°C
3 · TOLERANCEClass Gtight, ground
4 · TYPET40–60° countersunk hole, chipbreaker one side
5 · SIZE16inscribed Ø 9.525 mm · cutting edge 16.6 mm
6 · THICKNESS4.76 mm04
7 · NOSE RADIUS0.4 mm04
IC 9.525s 4.76clearance 7°rε 0.4
To scale: top view with the inscribed circle (blue dashes) and, on the right, the side view with the thickness. The grey dashes mark the chipbreaker; its real shape is up to the manufacturer.

VCGT 160404 dimensions

Inscribed circle IC9.525 mm
Cutting edge length16.61 mm
Thickness s4.76 mm
Nose radius rε0.4 mm
Corner angle35°
Clearance angle7°
Tolerance G: IC / corner height / thickness±0.025 / ±0.025 / ±0.13 mm
ANSI equivalent (inch)VCGT 331

What VCGT 160404 tells you on the shop floor

35° corner: reaches into grooves and complex profiles, but the edge is fragile. Light cuts only.

Positive insert (7°): lower cutting forces and less chatter. For finishing, boring, thin-walled parts and lighter machines.

Ground: a more precise edge, repeatable at every insert change. The choice for finishing and tight tolerances.

Small radius: lower forces and chatter, good finish at low feed.

Typical holders for VCGT

For a positive rhombic 35° insert the most common ISO 5608 holders are:

The final R or L means right or left hand. Shank size, length and the exact clamping are in the manufacturer's catalogue.

In inches, with the ANSI designation, the same insert is VCGT 331: size in eighths of an inch, thickness in sixteenths, radius in sixty-fourths. Converting any code, both ways, is in ISO Inserts Pro.

Other VCGT sizes

Same size, other version

Designation to ISO 1832; reference tables: Mitsubishi Materials turning catalogue (insert identification). Holders to ISO 5608. Chipbreaker, grade and cutting data differ between manufacturers: the catalogue of the insert you use is what counts.

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Frequently asked questions

What does VCGT 160404 mean?

VCGT 160404: rhombic 35°, positive, 7° clearance, tolerance G, 40–60° countersunk hole, chipbreaker one side. Inscribed circle 9.525 mm, thickness 4.76 mm, nose radius 0.4 mm.

What is the inscribed circle of VCGT 160404?

9.525 mm, with a 16.6 mm cutting edge.

What is the ANSI equivalent of VCGT 160404?

VCGT 331.

Which holder takes VCGT 160404?

An ISO 5608 holder for positive rhombic 35° inserts, for example SVJCR/L or SVVCN.

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