Manufacturer Part Number: 5520117|Indexable Tool Type|Boring Bar; TurningShim Style|TWNCompatible Insert Shape|TrigonToolholder Style Compatibility|PWLNR/LRake|NegativeCutting Direction|Left Hand; Right HandThickness (mm)|Thickness (Decimal Inch - 4 Decimals)|Thickness (Inch)|Tool Material|Series|TWNInsert Inscribed Circle (Inch)|1/2Insert Inscribed Circle (mm)|12.70Manufacturers Catalog Number|TWN 423Number of Shims Included in Order|Type|Shim SeatIndustry Standard Number|Inscribed Circle (Decimal Inch)|0.5000Complete Tool Holder Compatibility|A25 MWLNL-08W-AD; A25 MWLNR-08W-AD; A25R MWLNL-08W; A25R MWLNR-08W; A32S MWLNL-08W; A32S MWLNR-08W; A32S PWLNL-08; A32S PWLNR-08; C6 PWLNL-45065-08-JHP; C6 PWLNR-45065-08-JHP; PWLNL 2020K-08; PWLNL 2525M-08; PWLNL 2525M-08-JHP; PWLNL 3232P-08; PWLNL 3232PUNSPSC Code|