 | No. 11 3-Wing H.D Chevron Bit 2-3/4" Thru 4" 2" IF, 3THD N-Rod, or 4THD N-Rod |
| No. 12 3-Wing H. D. Chevron Bit 1-7/8" Thru 2-7/8" A-Rod or AW |
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 | No. 13 3-Wing H. D. Chevron Bit 5-1/2" Thru 8" 3-1/2" API Pin |
| No. 14 3-Wing H. D. Chevron Bit 4-5/8" Thru 5-5/8" 2-7/8" API Pin |
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No. 15 3-Wing H.D. Chevron Bit 3-3/4" Thru 5-1/2" 2-3/8" API Pin |
