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Imco Carbide Tool

enDURO® M525
Hard core for hard work.

Imco Carbide Tool
Imco enDURO M525 Square Corner

Imco enDURO 525 end mills are the ultimate combination of strength and flexibility, and feature a solid core, reinforced cutting edges, variable indexed flutes and an advanced coating to create an "everyday" high-performance end mill that excels in both traditional and high-efficiency milling (HEM) tool paths, see below for details. The enDURO 525 series come with a heat-resistant caoting, 5 flutes at a 40 degree helix angle with 3 available end types: square, corner radius and ball-nose.

Cutter/Shank Diameter LoC OAL Order Code by Corner Radius/Shape
SQ .015CR .030CR .060CR .090CR .125CR .187CR .250CR BN
1/8 1/4 1-1/2 65001 65002 65003 65004
1/2 1-1/2 65005 65006 65007 65008
3/4 2-1/2 65009 65010 65011 65012
3/16 5/16 2 65013 65014 65015 65016
9/16 2 65017 65018 65019 65020
3/4 2-1/2 65021 65022 65023 65024
1/4 3/8 2 65025 65026 65027 65028 65029 65030
3/4 2-1/2 65049 65050 65051 65052 65053 65054
1-1/8 3 65055 65056 65057 65058 65059 65060
5/16 7/16 2 65061 65062 65063 65064 65065 65066
13/16 2-1/2 65067 65068 65069 65070 65071 65072
1-1/4 3 65073 65074 65075 65076 65077 65078
2-1/8 4 65079 65080 65081 65082 65083 65084
3/8 1/2 2 65085 65086 65087 65088 65089 65090 65092
1 2-1/2 65133 65134 65135 65136 65137 65138 65140
1-1/4 3 65141 65142 65143 65144 65145 65146 65148
1-5/8 3-1/2 65149 65150 65151 65152 65153 65154 65156
1-5/8 4 65157 65158 65159 65160 65161 65162 65164
2 4 65173 65174 65175 65176 65177 65178 65180
7/16 5/8 2-1/2 65189 65190 65191 65196
1 2-3/4 65197 65198 65199 65204
2 4 65205 65206 65207 65212
1/2 5/8 2-1/2 65213 65214 65215 65216 65217 65218 65221
1 3 65258 65259 65260 65261 65262 65263 65266
1-1/4 3 65267 65268 65269 65270 65271 65272 65274 65275
1-5/8 4 65276 65277 65278 65279 65280 65281 65284
1-5/8 6 65285 65286 65287 65288 65289 65290 65293
2-1/8 4 65294 65295 65296 65297 65298 65299 65301 65302
2-5/8 5 65303 65304 65305 65306 65307 65308 65311
3-1/4 6 65312 65313 65314 65315 65316 65317 65320
5/8 3/4 3 65321 65322 65323 65324 65326 65330
1-5/8 3-1/2 65361 65362 65363 65364 65365 65366 65368 65370
2-1/8 4 65371 65372 65373 65374 65376 65380
2-1/8 6 65381 65382 65383 65384 65386 65390
2-5/8 5 65391 65392 65393 65394 65395 65396 65398 65400
3-1/4 6 65401 65402 65403 65404 65406 65410
4 6 65411 65412 65413 65414 65416 65420
3/4 1 3 65421 65422 65423 65424 65426 65429 65430
1-5/8 4 65461 65462 65463 65464 65465 65466 65468 65469 65470
2-3/8 5 65471 65472 65473 65474 65475 65476 65478 65479 65480
2-3/8 6 65481 65482 65483 65484 65486 65489 65490
3-1/4 6 65491 65492 65493 65494 65496 65499 65500
4-1/8 7 65501 65502 65503 65504 65506 65509 65510
1 1-3/4 4 65555 65556 65557 65558 65559 65560 65562 65563 65565
2-5/8 5 65566 65567 65568 65569 65570 65571 65573 65574 65576
3-1/4 6 65588 65589 65590 65591 65593 65596 65598
4-1/4 7 65599 65600 65601 65602 65604 65607 65609

enDURO® M525 Features

  • Amazing corner strength = Longer tool life, more parts per tool in nasty-hard metals.
  • Fine micrograin tungsten carbide substrate = Stability and stamina for high-efficiency machining at aggressive speeds and feeds.
  • Optimized rake and relief angles = Free cutting action generates better finishes and greatly reduces material warping.
  • Variable indexing = Reduced harmonic vibration, higher metal removal rates, longer tool life.
  • Five flutes, 40° helix = Maximum cutting edge engagement, higher metal removal rates, excellent finish.
  • Premium heat-resistant coating = Excellent hot hardness and wear resistance, longer tool life.
  • Ready to order in diameters of 1/8" to 11/ 4" = Exactly the tool you need.

Should you run HEM or not?

Traditional tool paths run well on very short runs and simple, shallow cuts. High-efficiency machining (HEM) excels when you can run an axial depth of cut that is 125% of the tool diameter or greater.

Traditional Method

Traditional tool paths use straight-line moves, generating heavy tool engagement, intense pressure in the corners, and the potential for the tool to break. That means the machine "looks ahead" and slows down the tool or requires programming speeds and feeds that allow the end mill to survive sharp turns. For example, removing material from 316 stainless steel might use a radial depth of cut (RDOC) 30% of the diameter and an axial depth of cut (ADOC) of 125% of the diameter of the tool. The graphs below show in gray the results of this kind of test.

HEM Method

HEM can greatly reduce the cycle time of a job and improve tool life. HEM uses advanced tool paths that maintain consistent pressure on cutting tools and the machine spindle. HEM tool paths typically utilize light radial cuts (step-overs), deep axial cuts, and elliptical tool paths when slotting and pocketing. Returning to our example, a HEM technique would utilize an RDOC of 8% of the diameter, with an ADOC of 300% of the diameter. These results are represented in light blue below, and illustrate the potential for HEM to reduce costs through faster cycle times and increased tool life.

Speed

325 SFM
440 SFM
2483 RPM
3361 RPM

Chip Load

.0033 in/tooth
.0058 in/tooth

Feed Rate

32.77 in/min
136 in/min
2483 RPM x [.0033 IPT x 4-flutes]
3361 RPM x [.0058 IPT x 7-flutes]

Removal Rate

3.072 in3
8.16 in3
32.77 IPM x .150" radial cut per pass x .625" axial cut per pass
136 IPM x .040" radial cut per pass x 1.5" axial cut per pass