Installation manual
DECIMAL 
TO 
METRIC 
EQUIVALENT 
CHART 
Fractions of 
Decimal (in.)  Metric (mm) 
Fractions of 
Decimal (in.)  Metric (mm) 
an  inch 
an 
inch 
1/64 
0.015625  0.39688  33/64 
0.515625  13.09687 
1/32 
0.03125  0.79375  17/32 
0.53125 
13.49375 
3/64 
0.046875  1.19062 
35/64 
0.546875 
13.89062 
1/16 
0.0625  1.58750  9/16 
0.5625 
14.28750 
5/64 
0.078125  1.98437  37/64 
0.578125 
14.68437 
3/32 
0.09375 
2.38125  19/32  0.59375 
15.08125 
7/64 
0.109375 
2.77812 
39/64 
0.609375 
15.47812 
1/8 
0.125  3.175 
5/8 
0.625 
15.87500 
9/64 
0.140625  3.57187  41/64 
0.640625 
16.27187 
5/32 
0.15625 
3.96875 
21/32 
0.65625  16.66875 
11/64 
0.171875  4.36562  43/64 
0.671875 
17.06562 
3/16 
0.1875  4.76250  11/16 
0.6875 
17.46250 
13/64 
0.203125  5.15937  45/64 
0.703125 
17.85937 
7/32 
0.21875  5.55625  23/32 
0.71875 
18.25625 
15/64 
0.234375  5.95312 
47/64 
0.734375 
18.65312 
1/4 
0.250  6.35000  3/4 
0.750 
19.05000 
17/64 
0.265625  6.74687 
49/64 
0.765625 
19.44687 
9/32 
0.28125  7.14375  25/32 
0.78125 
19.84375 
19/64 
0.296875 
7.54062  51/64 
0.796875 
20.24062 
5/16 
0.3125  7.93750  13/16 
0.8125 
20.63750 
21/64 
0.328125 
8.33437  53/64 
0.828125 
21.03437 
11/32 
0.34375  8.73125  27/32 
0.84375 
21.43125 
23/64 
0.359375  9.12812  55/64 
0.859375  21.82812 
3/8 
0.375  9.52500  7/8 
0.875 
22.22500 
25/64  0.390625  9.92187  57/64 
0.890625  22.62187 
13/32 
0.40625  10.31875 
29/32 
0.90625 
23.01875 
27/64 
0.421875  10.71562  59/64 
0.921875  23.41562 
7/16 
0.4375 
11.11250 
15/16 
0.9375 
23.81250 
29/64 
0.453125  11.50937  61/64 
0.953125 
24.20937 
15/32 
0.46875 
11.90625  31/32  0.96875 
24.60625 
31/64 
0.484375 
12.30312  63/64 
0.984375 
25.00312 
1/2 
0.500  12.70000  1 
1.00 
25.40000 
Engines 
.!1c 
Generators 
54 










