BORING BARS BORING BARS IDENTIFICATION Boring Bar ANSI Designation Chart A Steel Bar w/Coolant Hole 03 3/16" 16 1" F 3" Q 7" AX (A-type) Dimple Bar 04 1/4" 20 1-1/4" G 3-1/2" R 8" B Solid Steel Anti-vibration Bar 05 5/16" 24 1-1/2" H 4" S 10" C Carbide Bar (Steel Head) 06 3/8" 28 1-3/4" J 4-1/2" T 12" D Steel Anti-vibration Bar w/Coolant Hole 08 1/2" 32 2" K 5" U 14" E Carbide Bar (Steel Head) w/Coolant Hole 10 5/8" 36 2-1/4" L 5-1/2" V 16" EX (E-type) Dimple Bar 12 3/4" 40 2-1/2" M 6" W 18" F Carbide Anti-vibration Bar (Steel Head) x Shank Diameter N 6-1/2" Y 20" G Carbide Anti-vibration Bar(Steel Head w/Coolant Hole) P 6-3/4" Z Special H Heavy Metal Bar c Length E J Heavy Metal Bar w/Coolant Hole JX (J-type) Dimple Bar S Solid Steel Bar z Boring Bar Type E 12 M S C v Insert Holding b Insert Shape Top Clamp C D R S C Double Clamp D 80°Rhombic 55°Rhombic Round Square T V W Clamp and Lock Pin M Hole Clamp Triangular 35°Rhombic Trigon P Screw Lock Only S E004