What RCMX 1606M0 means, letter by letter: round, positive, 7° clearance, tolerance M, special. Inscribed circle 16 mm, thickness 6.35 mm, metric round, no nose radius.
R1C2M3X4165066M07
1 · SHAPERoundR
2 · CLEARANCE7°C
3 · TOLERANCEClass Mmedium, pressed
4 · TYPEXSpecial
5 · SIZE16inscribed Ø 16 mm
6 · THICKNESS6.35 mm06
7 · ROUNDmetric round, no nose radiusM0
To scale: top view with the inscribed circle (blue dashes) and, on the right, the side view with the thickness. No chipbreaker: flat rake face.
RCMX 1606M0 dimensions
Inscribed circle IC
16 mm
Thickness s
6.35 mm
Clearance angle
7°
Tolerance M
thickness ±0.13 mm
What RCMX 1606M0 tells you on the shop floor
Round insert: maximum strength and many cutting positions. Heavy roughing and tough materials.
Positive insert (7°): lower cutting forces and less chatter. For finishing, boring, thin-walled parts and lighter machines.
Pressed, medium tolerance: economical, fine for roughing and where you do not need repeatability to a few hundredths of a mm at every insert change.
Typical holders for RCMX
For a positive round insert the most common ISO 5608 holders are:
SRDCN
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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