SPMG07T308 TB40G Carbide Drilling Insert For Indexable U Drill Black Pack Of 10 BBT40 SIDE LOCK ADAPTOR so you can just check

so you can just check the description of size from other brands to fix this insert

010 micron or less

ER11M-Wrench SPANNER works on this collet nutInternal cam removes the collet when unscrewedMARSTECH CODE IS ER11A TYPE NUT

Standard runout is 0

Power & Hand Tools

SPMG07T308 TB40G Carbide Drilling Insert For Indexable U Drill Black Pack Of 10 BBT40 SIDE LOCK ADAPTOR so you can just checkSPMG07T308 U drill mostly range from 22mm,22. 5MM,23MM,23. 5MM,24MM,24. 5MM,25MM,25. 5MM,26MM,26. 5MM,27MM, 27. 5mm Cutting speed Vc 150 220 m min, feed 0. 05 0. 12 this is general recommendation you need to do some trial to find out best suitable parameters. This is a multi grade used on almost all material , 1 box contains 10 inserts.