What CCGT 09T302 means, letter by letter: rhombic 80°, positive, 7° clearance, tolerance G, 40–60° countersunk hole, chipbreaker one side. Inscribed circle 9.525 mm, thickness 3.97 mm, nose radius 0.2 mm.
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1 · SHAPERhombic 80°C
2 · CLEARANCE7°C
3 · TOLERANCEClass Gtight, ground
4 · TYPET40–60° countersunk hole, chipbreaker one side
5 · SIZE09inscribed Ø 9.525 mm · cutting edge 9.7 mm
6 · THICKNESS3.97 mmT3
7 · NOSE RADIUS0.2 mm02
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.
CCGT 09T302 dimensions
Inscribed circle IC
9.525 mm
Cutting edge length
9.67 mm
Thickness s
3.97 mm
Nose radius rε
0.2 mm
Corner angle
80°
Clearance angle
7°
Tolerance G: IC / corner height / thickness
±0.025 / ±0.025 / ±0.13 mm
What CCGT 09T302 tells you on the shop floor
80° corner: strong yet versatile, turns and faces with the same insert.
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 CCGT
For a positive rhombic 80° insert the most common ISO 5608 holders are:
SCLCR/L · lead angle 95°
SCACR/L · lead angle 90°
The final R or L means right or left hand. Shank size, length and the exact clamping are in the manufacturer's catalogue.
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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CCGT 09T302: rhombic 80°, positive, 7° clearance, tolerance G, 40–60° countersunk hole, chipbreaker one side. Inscribed circle 9.525 mm, thickness 3.97 mm, nose radius 0.2 mm.
What is the inscribed circle of CCGT 09T302?
9.525 mm, with a 9.7 mm cutting edge.
Which holder takes CCGT 09T302?
An ISO 5608 holder for positive rhombic 80° inserts, for example SCLCR/L or SCACR/L.
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