One who touches the upper beam, the lower beam, the harnesses, the sley, the thread that is drawn over purple material, or a spool which is not to be shot back, remains clean. If he touches the woof, the standing warp, the double thread that is drawn over purple material or a spool which is to be shot back, he becomes unclean. If one touches the wool that is on the distaff, or on the spool, he remains clean. If he touches the spinner: Before it was uncovered he is unclean, After it was uncovered he remains clean.

One who touches the yoke, the crossbar, the collar-piece, or the thick ropes, even when they are being used, he remains clean. If he touched the tail piece, knee or handle, he becomes unclean. If he touched the metal rings, the guides, or the flanks, he becomes unclean. Rabbi Judah says that he remains clean if he touched the guides since they only serve to increase the soil.

One who touches the handle of a saw at either end becomes unclean; [If he touched] its string, cord, cross-piece or side-pieces, a carpenter's vice, or the bow-handle of a bow-drill, he remains clean. Rabbi Judah says: so too he who touches the frame of a large saw remains clean. One who touches the bow-string or the bow, even though it was stretched, he remains clean. A mole-trap is clean. Rabbi Judah says: when it is stretched, the separate parts are [regarded as] connected.