GROOVING / CUTTING OFF Seat Size TypeExternalInternalExternal Angle Hand of Holder Seat Size TypeExternal Angle Hand of Holder GROOVING / CUTTING OFF QUICK INDEX Modular Blades Selection Chart (For External and Internal Grooving) Inch Inch Modular Blade or Holder Page Modular Blade or Holder Page Metric Metric GYHLUS12C00-M25L L GYHLUS12C00-M25L L GYHLUS16D00-M25L LGYHLUS20D00-M25LLF050 GYHLUS16D00-M25L LGYHLUS20D00-M25LLF050 Inch GYHLUS24E00-M25L L Inch GYHLUS24E00-M25L L C4-GYHLEX00-M25L L C4-GYHLEX00-M25L L 00° C5-GYHLEX00-M25L L F194 00° C5-GYHLEX00-M25L L F194 C6-GYHLF00-M25L L C6-GYHLF00-M25L L GYHL2020K00-M25L LMetric GYHL2525M00-M25L GYHL3225P00-M25LLLF074JGYM25LA-J25 GYHL2020K00-M25L LMetric GYHL2525M00-M25L GYHL3225P00-M25LLLF074 GYHL3232P00-M25L L GYHL3232P00-M25L L GYM25LA-J14 GYHRUS16D90-M25L R F05890°InchC4-GYHRD90-M25LC5-GYHRD90-M25LRRF204 GYHRUS16D90-M25L R F05890°InchC4-GYHRD90-M25LC5-GYHRD90-M25LRRF204 C6-GYHRE90-M25L R C6-GYHRE90-M25L R Metric GYHR2525M90-M25L R F082 Metric GYHR2525M90-M25L R F082 GYDRUS24M90D-M25L R F Inch GYDRUS24T90D-M25LGYDRUS32P90F-M25L RR F176 J 90° GYDRUS32T90F-M25L RGYDR40M90D-M25LR Metric GYDR40T90D-M25L GYDR50P90F-M25L RR F184 GYDR50T90F-M25L R GYHRUS12C00-M25R R GYHRUS16D00-M25R RGYHRUS20D00-M25RRF050 Inch GYHRUS24E00-M25R R C4-GYHREX00-M25R R 00° C5-GYHREX00-M25R R F194 C6-GYHRF00-M25R R GYM25RA-J25 GYHR2020K00-M25R RMetric GYHR2525M00-M25R GYHR3225P00-M25RRRF074 GYHR3232P00-M25R R GYHLUS16D90-M25R L F058 90° Inch C4-GYHLD90-M25RC5-GYHLD90-M25R LL F204 C6-GYHLE90-M25R L Metric GYHL2525M90-M25R L F082 F024