BT40 fmb 22 mm Face milling holder arbour pack of 1 Size:EXTENSION 22-50L These Torx screw are hardened

These Torx screw are hardened upto 50-55 hrc for wear resistance

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

HRC upto 45-55 with and without coolantAPMT1604 for BAP400R cutters brown coatedSUITABLE TO ALL MILLING CUTTERS FOR APMT1604

BAP400R 200-60-10T

BT30 Side Lock Adaptor

BT40 fmb 22 mm Face milling holder arbour pack of 1 Size:EXTENSION 22-50L These Torx screw are hardenedBT40 facemill holder, also called facemill arbour and facemill adaptor BT40 FMA22 is mainly used to hold a Modular Indexable Cutter with an internal hole of 16 mm. Any cutter can come with a 22 mm Internal thread, but 50 mm and 63 mm cutters are usually standard in this range. Made from alloy steel hardened to 54 56rcBalanced to G6. 3 at 12,000 rpmsConcentricity is less than . 005 micron up to 100 Length and 0. 012 up to 200 Length. All critical tool