630868 – REAMER TAPER PIN AMERICAN, STANDARD STRAIGHT FLUTE #4

IMPA 630868 – REAMER TAPER PIN AMERICAN, STANDARD STRAIGHT FLUTE #4 – 1/48 Taper pins according to U.S. Standard have a taper of 6.35 mm per 25.4 mm. These reamers are designed in nominal numbers but since the standards are not unified, there are minor differences in tip diameter and small end diameter.