GROOVING / CUTTING OFF Seat Size TypeExternalExternalExternalInternal Angle Hand of Holder Seat Size TypeExternalInternalExternalExternal 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 GYHRUS12C00-M25R R GYHLUS12C00-M25L L GYHRUS16D00-M25R RGYHRUS20D00-M25RRF042 GYHLUS16D00-M25L LGYHLUS20D00-M25LLF042 Inch GYHRUS24E00-M25R R Inch GYHLUS24E00-M25L L C4-GYHREX00-M25R R C4-GYHLEX00-M25L L 00° C5-GYHREX00-M25R R F188 00° C5-GYHLEX00-M25L L F188 C6-GYHRF00-M25R R C6-GYHLF00-M25L L GYM25RA-E06 GYHR2020K00-M25R RMetric GYHR2525M00-M25R GYHR3225P00-M25RRRF066 GYHL2020K00-M25L LMetric GYHL2525M00-M25L GYHL3225P00-M25LLLF066 GYHR3232P00-M25R R GYHL3232P00-M25L L GYHLUS16D90-M25R L F05490°InchC4-GYHLD90-M25RC5-GYHLD90-M25RLLF198GYM25LA-E12GYHRUS16D90-M25L R F05490°InchC4-GYHRD90-M25LC5-GYHRD90-M25LRRF198 C6-GYHLE90-M25R L C6-GYHRE90-M25L R Metric GYHL2525M90-M25R L F078 Metric GYHR2525M90-M25L R F078 GYHLUS12C00-M25L L GYDRUS24M90D-M25L R F GYHLUS16D00-M25L LGYHLUS20D00-M25LLF042 Inch GYDRUS24T90D-M25LGYDRUS32P90F-M25L RR F172InchGYHLUS24E00-M25LLC4-GYHLEX00-M25LL90°GYDRUS32T90F-M25LRGYDR40M90D-M25LR 00° C5-GYHLEX00-M25L L F188C6-GYHLF00-M25LL Metric GYDR40T90D-M25L GYDR50P90F-M25L RR F180 GYM25LA-E06 GYHL2020K00-M25L LMetric GYHL2525M00-M25L GYHL3225P00-M25LLLF066GYHL3232P00-M25LL GYDR50T90F-M25L RGYHRUS12C00-M25RRGYHRUS16D00-M25RRGYHRUS20D00-M25RRF042 E GYHRUS16D90-M25L R F05490°InchC4-GYHRD90-M25LC5-GYHRD90-M25LRRF198E Inch GYHRUS24E00-M25R RC4-GYHREX00-M25RR00°C5-GYHREX00-M25RRF188 C6-GYHRE90-M25L R C6-GYHRF00-M25R R Metric GYHR2525M90-M25L R F078GYHRUS12C00-M25RRGYHRUS16D00-M25RRGYHRUS20D00-M25RRF042GYM25RA-E20GYHR2020K00-M25R RMetric GYHR2525M00-M25R GYHR3225P00-M25RRRF066GYHR3232P00-M25RR Inch GYHRUS24E00-M25R R GYHLUS16D90-M25R L F054 C4-GYHREX00-M25R R00°C5-GYHREX00-M25RRF188 90° Inch C4-GYHLD90-M25RC5-GYHLD90-M25R LL F198 C6-GYHRF00-M25R R C6-GYHLE90-M25R L GYHR2020K00-M25R R Metric GYHL2525M90-M25R L F078 Metric GYHR2525M00-M25R GYHR3225P00-M25R RR F066GYHR3232P00-M25RR GYHLUS12C00-M25L LGYHLUS16D00-M25LLGYHLUS20D00-M25LLF042 GYM25RA-E12 GYHLUS16D90-M25R L90°InchC4-GYHLD90-M25RC5-GYHLD90-M25RLLF054F198 Inch GYHLUS24E00-M25L LC4-GYHLEX00-M25LL00°C5-GYHLEX00-M25LLF188 C6-GYHLE90-M25R L C6-GYHLF00-M25L L Metric GYHL2525M90-M25R L F078GYDLUS24M90D-M25RLInchGYDLUS24T90D-M25RGYDLUS32P90F-M25RLLF172GYM25LA-E20GYHL2020K00-M25L LMetric GYHL2525M00-M25L GYHL3225P00-M25LLLF066GYHL3232P00-M25LL 90° GYDLUS32T90F-M25R LGYDL40M90D-M25RLMetric GYDL40T90D-M25R GYDL50P90F-M25RLLF180 GYHRUS16D90-M25L R F05490°InchC4-GYHRD90-M25LC5-GYHRD90-M25LRRF198C6-GYHRE90-M25LR GYDL50T90F-M25R L Metric GYHR2525M90-M25L R F078 F018