Packard
Member
The CMT bits, for their Boring Jig, are also right and left handed, and are solid carbide. Expensive though, ranging between $25.00 and $30.00 each.You won't be buying standard drill bits.
The outside bits are left hand twist.
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You do have to search for them, but I’ve done it here, but when shopping note the shaft diameter and the overall length. It might not work with all fixtures.