Product Lineup  Boring Bar Identification System (Round Shank) F : 80 Q: 180 C Manufacture's Option C : Top Clamp : 80° Rhombic G: 90 R: 200 D : 55° Rhombic Optional Mark or S Steel H: 100 S : 250 M : Multi Lock J : 70° Rhombic Number Steel J : 110 T : 300 P R : Round Example A K : 125 U : 350 : Lock Pin Only or A(N):Dynamic Bar (with Coolant Hole) Lever Lock S : 90° Square L : 140 V : 400 T R : Right-hand AE :Excellent Bar which C Carbide M: 150 W: 450 S : Screw Clamp : 60° Triangle is Dynamic Bar type N : 160 Y : 500 V : 35° Rhombic L : Left-hand E Carbide W : Wedge Lock W : 80° Trigon E :Excellent Bar (with Coolant Hole) P : 170 X : Special Shank Type Bar Length Clamping System Insert Shape Hand of Tool Others F S 12 M − S C L P R 09 − 16 Boring Shank Dia. Cutting Edge Angle Insert Relief Angle Insert Size Min. Bore Dia. F K L P 90° 75° 95° 117.5° C D,J,Y α L L Q S U W B : 5°Positive 107.5° 93° C : 7°Positive S T 60° 45° D : 15°Positive L L Y X Z E : 20°Positive N : 0°Negative R 110° 93°(95°) V 85° P : 11°Positive L L  Anti-vibration interchangeable head mechanism Boring Bar “AD Bars” For the identification system for boring bars with interchangeable head, Ref. to page F63  Guide Line for Overhang Length of Boring Bar (Workpiece Material : S45C) Overhang Length (L / D) Shank Material 3 Steel D 4 Steel (Dynamic Bar) 5 Excellent 5.5 Excellent (Dynamic Bar) AD Bars L 6 (with Anti-vibration Dampener System) 7 Carbide  Carbide Shank Boring Bar  Short Shank Series Standard Size Short Shank Types with length of 1/2 and 2/3 of standard type are available. (-1/2 or -2/3 is shown at the end of the description) 2/3 Size When installing on machines, no additional machining (to change toolholder length) is required. 1/2 Size F6