HOZAN C-402 Bottom Bracket Tap

?? It is a tap for screw thread correction of the bottom bracket (BB). Use by attaching the tap handle. * When using tap dies, be sure to lubricate with cutting oil. (C-17 Cutting oil) RH: Positive screw (clockwise tightening direction) LH: Reverse screw (counterclockwise tightening direction) * For JIS type, the right side of the frame is LH (reverse screw) The left side of the frame is RH (clockwise screw)