Standard ID Tolerance:
From #80 to 1/4" +.0001/+.0004
Over 1/4 to 3/4" +.0001/+.0005
Over 3/4 to 1-1/2" +.0002/+.0006
Over 1-1/2 to 2-3/4" +.0003/+.0007
Reamer ID Tolerance (Special):
From #80 to 1/4" +.0005/+.0008
Over 1/4 to 3/4" +.0006/+.0010
Over 3/4 to 1-1/2" +.0008/+.0012
Reamer bushings have a different ID-tolerance range than drill bushings. To special-order bushings with the reamer ID tolerance shown here, add "-REAMER" to the part number:
P-20-16-.1250-REAMER (Special)