Helical Back Rake Boring Bars without Flat - Uncoated

HB25 HELICAL BACK RAKE BORING BAR CARBIDE .025 X 3/32 (1/8 SHANK) 1-1/2 OAL 215916 HB27 HELICAL BACK RAKE BORING BAR CARBIDE .027 X 1/8 (1/8 SHANK) 1-1/2 OAL 215922 HB31L HELICAL BACK RAKE BORING BAR CARBIDE .031 X 3/16 (1/8 SHANK) 1-1/2 OAL 215934 HB31 HELICAL BACK RAKE BORING BAR CARBIDE .031 X 5/32 (1/8 SHANK) 1-1/2 OAL 215928 HB36L HELICAL BACK RAKE BORING BAR CARBIDE .036 X 1/4 (1/8 SHANK) 1-1/2 OAL 215946 HB36 HELICAL BACK RAKE BORING BAR CARBIDE .036 X 5/32 (1/8 SHANK) 1-1/2 OAL 215940 HB42 HELICAL BACK RAKE BORING BAR CARBIDE .042 X 1/4 (1/8 SHANK) 1-1/2 OAL 215952 HB42L HELICAL BACK RAKE BORING BAR CARBIDE .042 X 5/16 (1/8 SHANK) 1-1/2 OAL 215958 HB52 HELICAL BACK RAKE BORING BAR CARBIDE .052 X 5/16 (1/8 SHANK) 1.5 OAL 215964 HB57 HELICAL BACK RAKE BORING BAR CARBIDE .057 X 5/16 (1/8 SHANK) 1-1/2 OAL 215970 HB60L HELICAL BACK RAKE BORING BAR CARBIDE .060 X 1/2 (1/8 SHANK) 1-1/2 OAL 215982 HB60 HELICAL BACK RAKE BORING BAR CARBIDE .060 X 3/8 (1/8 SHANK) 1-1/2 OAL 215976 HB70 HELICAL BACK RAKE BORING BAR CARBIDE .070 X 7/16 (1/8 SHANK) 1-1/2 OAL 215988 HB80 HELICAL BACK RAKE BORING BAR CARBIDE .080 X 1/2 (1/8 SHANK) 1-1/2 OAL 215994 HB85 HELICAL BACK RAKE BORING BAR CARBIDE .085 X 1/2 (1/8 SHANK) 1-1/2 OAL 216000 HB90 HELICAL BACK RAKE BORING BAR CARBIDE .090 X 1/2 (1/8 SHANK) 1-1/2 OAL 216006 HB90L HELICAL BACK RAKE BORING BAR CARBIDE .090 X 5/8 (1/8 SHANK) 1-1/2 OAL 216012 HB100L HELICAL BACK RAKE BORING BAR CARBIDE .100 X 5/8 (1/8 SHANK) 2 OAL 215886 HB100 HELICAL BACK RAKE BORING BAR CARBIDE .100 X 9/16 (1/8 SHANK) 1-1/2 OAL 215880 HB110L HELICAL BACK RAKE BORING BAR CARBIDE .110 X 5/8 (1/8 SHANK) 2 OAL 215898 HB110 HELICAL BACK RAKE BORING BAR CARBIDE .110 X 9/16 (1/8 SHANK) 1-1/2 OAL 215892 HB120 HELICAL BACK RAKE BORING BAR CARBIDE .120 X 5/8 (1/8 SHANK) 1-1/2 OAL 215904 HB120L HELICAL BACK RAKE BORING BAR CARBIDE .120 X 5/8 (1/8 SHANK) 2 OAL 215910 HB135 HELICAL BACK RAKE BORING BAR CARBIDE .135 X (7/64 SHANK) 1-1/2 OAL 215736 HB150 HELICAL BACK RAKE BORING BAR CARBIDE .150 X (1/8 SHANK) 1-1/2 OAL 215739 HB150L HELICAL BACK RAKE BORING BAR CARBIDE .150 X (1/8 SHANK) 2-1/2 OAL 215742 HB180L HELICAL BACK RAKE BORING BAR CARBIDE .180 (5/32 SHANK) 2 OAL 215751 HB180EL HELICAL BACK RAKE BORING BAR CARBIDE .180 (5/32 SHANK) 3 OAL 215748 HB180 HELICAL BACK RAKE BORING BAR CARBIDE .180 X (5/32 SHANK) 1-1/2 OAL 215745 HB210L HELICAL BACK RAKE BORING BAR CARBIDE .210 (3/16 SHANK) 3 OAL 215757 HB240 HELICAL BACK RAKE BORING BAR CARBIDE .240 (7/32 SHANK) 1-1/2 OAL 215760 HB240L HELICAL BACK RAKE BORING BAR CARBIDE .240 (7/32 SHANK) 3 OAL 215763 HB300L HELICAL BACK RAKE BORING BAR CARBIDE .300 (1/4 SHANK) 3-1/2 OAL 215769 HB300 HELICAL BACK RAKE BORING BAR CARBIDE .300 (1/4 SHANK)2-1/2 OAL 215766 HB360 HELICAL BACK RAKE BORING BAR CARBIDE .345 (5/16 SHANK) 3 OAL 215772 HB360L HELICAL BACK RAKE BORING BAR CARBIDE .345 (5/16 SHANK) 5 OAL 215775 HB480 HELICAL BACK RAKE BORING BAR CARBIDE .480 (7/16 SHANK) 3 OAL 215778 HB480L HELICAL BACK RAKE BORING BAR CARBIDE .480 X (7/16 SHANK) 6 OAL 215781