Te c h n i c a l Guide I M P O R TA N T - Replacement of shim AH725 Insert AH 725 insert has 2 types of shims according to the chipbreaker Conventional geometry. Please find an appropriate shim in the table below. When shim using a wrong shim, the insert seating may become unstable or the tool Toolholder life may be shortened. Interchangeable shim (Insert size: 16) Inappropriateexample Toolholderscrew type ExternalLead angle1Conventional shim1Standard (New) Internal2Conventional shim2Standard (New) 4° GXE16-4DT AE16-4DT GXN16-4DT AN16-4DT 3° GXE16-3DT AE16-3DT GXN16-3DT AN16-3DT Dual clamping 2° GXE16-2DT AE16-2DT GXN16-2DT AN16-2DT methods ofscrew-on and1°(Standard) GX16-1DT A16-1DT GX16-1DT A16-1DT clamp-on 0° GXE16-0DT AE16-0DT GXN16-0DT AN16-0DT -1° GXE16-99DT AE16-99DT GXN16-99DT AN16-99DT -2° GXE16-98DT AE16-98DT GXN16-98DT AN16-98DT 4° GXE16-4 AE16-4 GXN16-4 AN16-4 3° GXE16-3 AE16-3 GXN16-3 AN16-3 2° GXE16-2 AE16-2 GXN16-2 AN16-2 Clamp-on 1° (Standard) GXE16-1 A16-1 GXN16-1 A16-1 0° GXE16-0 AE16-0 GXN16-0 AN16-0 -1° GXE16-99 AE16-99 GXN16-99 AN16-99 -2° GXE16-98 AE16-98 GXN16-98 AN16-98 Shim to be replaced (Insert size: 16) External Internal Thread Designation Grade Replacement Designation Grade Replacement 16IR15ISO-B AH725 ISO 16IR175ISO-B AH725 16IR20ISO-B AH725 55° 16ERAG55-B AH725 16IRAG55-B AH725 16IRG55-B AH725 16ERA60-B AH725 16IRAG60-B AH725 60° 1 Conventional 16IRA60-B AH725 2 Conventional shim 16IRG60-B shimAH725 16IR18UN-B AH725 UN 1 Standard(New) 16IR16UN-B16IR14UN-B AH725AH725 2 Standard(New) W 16IR16W-B AH725 16IR14W-B AH725 PT 16IR14PT-B AH725 16ER8NPT-B AH725 16IR14NPT-B AH725 NPT 16IR115NPT-B AH725 Reference pages: E010, E014, E016 - E021 E052 www.tungaloy.com