• GM6515 TiN + CrC/C for stainless steel.
  • GP6520 TiCN for steel.
Shank Tolerance
D mm tolerance h6
>3–6 +0, -0,008
>6–10 +0, -0,009
>10–18 +0, -0,011
>18–30 +0, -0,013
>30–50 +0, -0,016

„ GT31 Form C Semi-Bottoming Chamfer Through Coolant Metric DIN 371 and 376 For Steel

and Stainless Steel

first choice alternate choice

grade GP6520GP6520 grade GM6515GM6515

GP6520 grade GP6520 TiCN order # catalogue #GM6515 grade GM6515 TiN+CrC/C order # catalogue #D1 sizeLL3 metric diL2 mensionsDnumber of flutesdimension standardclass of fit
3955349 GT3150073955343 GT315001M5 X 0,87010256,03DIN 3716HX
3955350 GT3150083955344 GT315002M6 X 18010306,03DIN 3716HX
3955351 GT3150093955345 GT315003M8 X 1,259013358,03DIN 3716HX
3955352 GT3150103955346 GT315004M10 X 1,5100153910,03DIN 3716HX
3955373 GT3150113955347 GT315005M12 X 1,7511018449,04DIN 3766HX
3955374 GT3150123955348 GT315006M14 X 2110205211,04DIN 3766HX
5143530 GT315033M16 X 2110205112,04DIN 3766HX
5143531 GT315034M18 X 2,5125255814,04DIN 3766HX
5143532 GT315035M20 X 2,5140256416,04DIN 3766HX
4033744 GT315025M24 X 3160307718,05DIN 3766HX
4033746 GT315027M30 X 3,5180359122,05DIN 3766HX
4033747 GT315028M33 X 3,51803510025,05DIN 3766HX
4033749 GT315030M36 X 42004011028,05DIN 3766HX
4033751 GT315032M42 X 4,52004512032,05DIN 3766HX