HF WFHF WF H BHB GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex DSBNR/L A "One-Double" toolholder with 75° approach angle, for negative square inserts B LH 75° LF Cutting edge style B Right hand (R) shown. C Designation H B LF LH HF WF RE** Insert DSBNR/L2020K12 20 20 125 35 20 17 0.8 SN**1204... DSBNR/L2525M12 25 25 150 35Note: Except for 57-type chipbreaker inserts**RE: Standard corner radius25220.8 SN**1204... D SPARE PARTS Designation Clamp Lever Piston Clamp screw Shim Spring Spring pin Wrench 1 Wrench 2 DSBNR/L... DCPM-43 DLCL43 DPIS43 DLCS43 LSS42 BP-10 LSP4 P-3 P-4 E HSRNR/L Retract-pin toolholder with 75° approach angle, for negative square inserts F LH LF 75° Cutting edge style R Right hand (R) shown. G Designation H B LF LH HF WF RE** Insert HSRNR/L4040R 40 40 200 50 40 43 1.6 SNMM3109... HSRNR/L5050S 50**RE: Standard corner radius50 250 60 50 53 1.6 SNMM3109... H SPARE PARTS Designation Pin Clamping screw Shim Wrench HSRNR/L... SW99 LS-8 NAS-04 P-4 I INSERT SELECTION Application PrecisionfinishingFinishing Medium cutting Medium to heavy cutting Application Finishing Medium cutting Medium to heavy cuttingGradeNS9530GT9530T9215T9215GradeT6120T6130T6130TFTSFTMTHSFSMSHJ Chipbreaker Chipbreaker Shape Shape Cutting conditions B006 Cutting conditions B008 Application Finishing Medium cutting Medium to heavy cutting Application Finishing Medium cuttingGradeT515T515T515GradeDX140TH10 K All-round All-round All-round T-DIA P Chipbreaker Chipbreaker Shape Shape Cutting conditions B010 Cutting conditions B012ApplicationPrecisionfinishingFinishingMedium cutting L Grade BX480 AH8005 AH8005 T-CBN HRF HRM Chipbreaker ShapeCutting conditions B014 M Reference pages: DSBNR/L: Inserts → B075 -, CBN → B175, PCD → B193 HSRNR/L: Inserts → B081 Tungaloy C095