Powermatic 1200HD, Instruction Manual & Parts List

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TABLE 1A: DRILLING FEEDS - SPEED - HORSEPOWER REQUIRED
CAST IRON
FT. PER MIN. 250 FT. 150 FT. 300 FT. 80 FT. 100 FT. 80 FT. 80 FT. 40 FT.
INCHES INCHES RPM RPM RPM RPM RPM RPM RPM RPM
1/16 0.003 15279 9167 18320 4889 6111 4889 4889 2445
3/32 0.0035 10186 6111 12212 3262 4077 3262 3262 1628
1/8 0.004 7639 4583 9160 2445 3056 2445 2445 1222
5/32 0.0045 6111 3667 7328 1956 2445 1956 1956 976
3/16 0.005 5093 3056 6106 1630 2037 1630 1630 815
7/32 0.0055 4365 2619 5234 1398 1747 1398 1398 698
1/4 0.006 3820 2292 4575 1222 1528 1222 1222 611
9/32 0.0065 3395 2037 4071 1087 1359 1087 1087 542
5/16 0.007 3056 1833 3660 978 1222 978 978 489
11/32 0.0075 2778 1667 3330 889 1111 889 889 444
3/8 0.008 2546 1528 3050 815 1019 815 815 407
13/32 0.0085 2350 1410 2818 752 940 752 752 376
7/16 0.009 2183 1310 2614 698 873 698 698 349
15/32 0.0095 2037 1222 2442 652 815 652 652 326
1/2 0.01 1910 1146 2287 611 764 611 611 306
17/32 0.0102 1798 1079 2157 575 719 575 575 288
9/16 0.0105 1698 1019 2035 543 679 543 543 271
19/32 0.0107 1608 965 1930 515 643 515 515 257
5/8 0.011 1528 917 1830 489 611 489 489 244
21/32 0.0112 1456 873 1746 466 582 466 466 233
11/16 0.0115 1389 833 1665 444 556 444 444 222
23/32 0.0117 1329 797 1594 425 532 425 425 213
3/4 0.012 1273 764 1525 407 509 407 407 204
25/32 0.0122 1222 733 1467 391 489 391 391 196
13/16 0.0125 1175 705 1409 376 470 376 376 188
7/8 0.013 1091 655 1307 349 436 349 349 175
15/16 0.0135 1019 611 1221 326 407 326 326 163
1 0.014 955 573 1143 306 382 306 306 153
SIZE OF
DRILL
FEED PER
REVOLU-
TION
BRONZE
BRASS
COPPER ALUMINUM
MALLE-
ABLETION
MACHINE
SURFACE
SCALE
SURFACE
DEEP
HOLES
STEEL
CASTING