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Structural Steel Drills from CobraCut

CobraCut SSD structural steel drills are the newest tooling offering from American Punch Company. These drills incorporate special cutting geometry specifically designed for structural steel drilling. Available in High Speed Steel and Cobalt, 170 deg or 135 deg point with Chipbreaker technology these drills will penetrate up to 20% faster than other coolant fed drills and inserts.

  • All drills are crafted of HSSCo M-35 COBALT for increased cutting edge life.
  • CHIPBREAKER TECHNOLOGY eliminates long spiral chips, especially when drilling deep.
  • COOLANT FEED allows faster speeds and feeds. Coolant tubes are located away from the web for increased web strength.
  • 170° DRILL POINTeliminates the need to grind the exit hole. Standard drill points are available.
  • NO expensive holders are required.
  • Drills are RE-SHARPENABLE many times over.

Standard Sizes (Many additional lengths, sizes and drill points are available - please call.)

Size
O.A.L.
Ampch #
7/16”
9”
CC04378-CO
1/2”
9”
CC05009-CO
17/32”
9-1/4”
CC05309-CO
9/16”
9-1/2”
CC05609-CO
9/16”
15”
CC05615-CO
5/8”
9-1/2”
CC06209-CO
21/32”
9-5/8”
CC06509-CO
11/16”
9-7/8”
CC06809-CO
11/16”
15”
CC06815-CO
3/4”
10-1/4”
CC07510-CO
3/4”
15”
CC07515-CO
25/32”
10-1/4”
CC07810-CO
13/16”
10-1/2”
CC08110-CO
13/16”
15”
CC08115-CO
7/8”
10-5/8”
CC08710-CO
7/8”
15”
CC08715-CO
15/16”
11”
CC09311-CO
15/16”
14”
CC09314-CO
1”
11-1/4”
CC10011-CO
Size
O.A.L.
Ampch #
1”
14”
CC10014-CO
1-1/16”
11-3/8”
CC10611-CO
1-1/16”
14”
CC10614-CO
1-1/8”
12-3/4”
CC11212-CO
1-3/16”
13”
CC11813-CO
1-1/4”
13-1/8”
CC12513-CO
1-5/16”
14-1/4”
CC13114-CO
1-3/8”
14-1/2”
CC13714-CO
1-7/16”
14-3/4”
CC14314-CO
1-1/2”
15”
CC15015-CO
1-9/16”
15-1/4”
CC15615-CO
1-5/8”
15-1/2”
CC16215-CO
1-11/16”
15-3/4”
CC16815-CO
1-3/4”
16”
CC17516-CO
1-13/16”
16”
CC18116-CO
1-7/8”
16”
CC18716-CO
1-15/16”
16”
CC19316-CO
2”
17”
CC20017-CO

Suggested Starting Feeds and Speeds

Size
RPM
Feed Rate in/rev
7/16”
710 to 1050
0.012
1/2”
611 to 840
0.013
9/16”
590 to 810
0.014
5/8”
562 to 773
0.015
11/16”
480 to 670
0.016
3/4”
469 to 644
0.017
13/16”
410 to 560
0.018
7/8”
370 to 510
0.019
15/16”
350 to 480
0.02
1”
320 to 440
0.021
1-1/16”
300 to 420
0.022
1-1/8”
280 to 400
0.023
1-3/16”
270 to 380
0.024
Size
RPM
Feed Rate in/rev
1-1/4”
260 to 360
0.024
1-5/16”
250 to 350
0.026
1-3/8”
222 to 306
0.027
1-7/16”
231 to 292
0.028
1-1/2”
204 to 280
0.03
1-9/16”
196 to 269
0.032
1-5/8”
188 to 259
0.033
1-11/16”
180 to 248
0.034
1-3/4”
175 to 240
0.036
1-13/16”
168 to 230
0.037
1-7/8”
160 to 222
0.038
1-15/16”
156 to 216
0.039
2”
150 to 210
0.04
To place an order or to speak to a knowledgeable salesperson, call today!
 
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