| 摘要 |
An apparatus for holding wires for measuring screw threads by the three wire method includes a body portion (1) and a plurality of wire holder ears (13, 14) positioned in a vertical orientation. The wire holder ears are limited in rotational movement by weighted lower base portions (19, 26) attached thereto. A generally U-shaped recess (35) is defined by vertical walls (35A, 35B) extending up from horizontal wall (38). The recess (35) prevents further movement of the wire holder ears (13, 14) when such ears are placed therein. |
