Menu
STEP REAMER TYPE 3444 - STRAIGHT SHANK - RIGHT SPIRAL FLUTE LONG CARBIDE - FOR STEEL
TYPE
Flute long carbide tips brazed to one piece hardened alloy steel bodies. Right spiral polished flutes. Available with cutting or non-cutting pilots.
Right spiral flutes have a greater chip clearing ability for use with ductile materials, highly abrasive materials or blind holes. Finishes are much better as spiral flutes tend to bridge interruptions such as keyways, slots or intersecting holes. NAS 897 chucking reamers manufactured to national aerospace standards 897 C with flute long carbide. Tool geometry and carbide grade appropriate for material being machined.
NOTES:
  1. Order must indicate if pilot is cutting or non-cutting and identify material being machined.
  2. The difference between major and minor diameter shall not exceed 6%, and must fall within dimensions shown for that particular tool.
  3. Non-cutting pilot diameters may be smaller than cutting diameter range, but not less than non-cutting pilot minimum diameter dimension shown.
  4. It is recommended that stock removal of 3% be the basis for selecting each cutting diameter.
Below is Lexington Cutter's selection of Step Type Reamers. We offer a wide variety of carbide tipped and solid carbide cutting tools. Over 95% are in stock either finished or semi finished for fast delivery.
Shanks are ground to the next smallest shank diameter listed in NAS 897 if tool diameter is within .005" of shank diameter.
Shank diameter tolerance thru 23/32" tool diameter: +.0000"/-.0010".
Shank diameter tolerance over 23/32" tool diameter: +.0000"/-.0015".
MAJOR AND MINOR
CUTTING DIAMETER
RANGE
NON-CUT
PILOT MIN.
DIAM.
MAX
SHANK
DIAM.
NO.
OF
FLTS.
FLT.
LEN.
OVER
ALL
LEN.
EDP
NO.
PRICE EACH - FINISHED TO DECIMAL SIZE
1 PC. 2 PC. 3 PC. 4 PC. 5-7 8-14 15+
 .2841 -  .3150  .2670  .2792 4  1/         344410ST $189.70 $149.60 $136.20 $129.80 $123.00 $117.60 $109.70
 .3151 -  .3470  .2960  .2792 4  1/         344411ST 200.90 160.70 147.30 141.00 134.05 128.75 120.80
 .3471 -  .3780  .3260  .3105 4  3/         344412ST 201.95 161.90 148.45 142.10 135.25 129.80 122.00
 .3781 -  .4090  .3550  .3105 4  3/         344413ST 207.40 167.30 153.95 147.50 140.65 135.25 127.40
 .4091 -  .4410  .3850  .3730 6  3/         344414ST 212.25 172.20 158.75 152.40 145.55 140.15 132.30
 .4411 -  .4720  .4150  .3730 6  3/         344415ST 220.70 180.60 167.25 160.80 154.00 148.55 140.70
 .4721 -  .5030  .4440  .4355 6                 344416ST 237.00 194.25 179.90 173.10 165.85 160.00 151.70
 .5031 -  .5340  .4730  .4355 6                 344417ST 241.45 198.65 184.40 177.60 170.25 164.50 156.10
 .5341 -  .5660  .5020  .4355 6                 344418ST 241.45 198.65 184.40 177.60 170.25 164.50 156.10
 .5661 -  .5970  .5320  .4355 6                 344419ST 246.00 203.35 189.05 182.20 174.85 169.10 160.70
 .5971 -  .6280  .5610  .5615 6  1/         344420ST 246.00 203.35 189.05 182.20 174.85 169.10 160.70
 .6281 -  .6590  .5900  .5615 6  1/         344421ST 251.10 208.45 194.05 187.25 179.90 174.15 165.85
 .6591 -  .6910  .6200  .5615 6  1/         344422ST 261.45 218.70 204.35 197.55 190.25 184.50 176.10
 .6911 -  .7220  .6500  .5615 6  1/         344423ST 264.10 221.35 207.05 200.20 192.90 187.10 178.85
 .7221 -  .7530  .6790  .6245 6  1/  1/ 344424ST 266.70 224.00 209.65 202.85 195.60 189.75 181.35
 .7531 -  .7840  .7080  .6245 6  1/  1/ 344425ST 271.55 228.85 214.50 207.70 200.35 194.60 186.20
 .7841 -  .8160  .7370  .6245 6  1/  1/ 344426ST 271.55 228.85 214.50 207.70 200.35 194.60 186.20
 .8161 -  .8470  .7670  .6245 6  1/  1/ 344427ST 281.70 239.00 224.65 217.85 210.40 204.75 196.35
 .8471 -  .8780  .7970  .7495 6  5/ 10         344428ST 292.25 248.00 233.10 226.10 218.40 212.50 203.75
 .8781 -  .9090  .8260  .7495 6  5/ 10         344429ST 325.85 281.40 266.55 259.55 251.95 245.90 237.15
 .9091 -  .9410  .8550  .7495 8  5/ 10         344430ST 325.85 281.40 266.55 259.55 251.95 245.90 237.15
 .9411 -  .9720  .8850  .7495 8  5/ 10         344431ST 337.45 293.10 278.25 271.10 263.55 257.60 248.90
 .9721 - 1.0030  .9140  .8745 8  3/ 10  1/ 344432ST 337.45 293.10 278.25 271.10 263.55 257.60 248.90
1.0031 - 1.0660  .9430  .8745 8  3/ 10  1/ 344434ST 381.00 336.65 321.80 314.70 307.15 301.20 292.55
1.0661 - 1.1280 1.0020  .8745 8  7/ 11         344436ST 390.10 345.75 330.80 323.80 316.20 310.25 301.55
1.1281 - 1.1905 1.0610  .9995 8  7/ 11         344438ST 405.60 361.25 346.35 339.35 331.75 325.80 317.05
1.1906 - 1.2530 1.1200  .9995 8         11  1/ 344440ST 423.85 379.45 364.65 357.55 350.00 344.00 335.30
1.2531 - 1.3155 1.1780  .9995 8         11  1/ 344442ST 459.75 415.40 400.45 393.45 385.75 379.80 371.15
1.3156 - 1.3780 1.2370  .9995 8  1/ 12         344444ST 495.10 450.75 435.95 428.80 421.25 415.25 406.65
1.3781 - 1.4405 1.2960  .9995 8  1/ 12         344446ST 519.25 474.90 460.10 452.95 445.40 439.40 430.80
1.4406 - 1.5030 1.3550 1.2495 8  1/ 12  1/ 344448ST 543.60 499.40 484.45 477.45 469.85 463.90 455.15

Do you need special Step Type Reamers?

If you can't find the specific Step Type Reamers you are looking for we can manufacture it for you as a special. Simply fill out our Special Tool Quote Form and fax it back to us at 941-739-2827. You can also send us a message with your requirements through our Contact Us page. We will provide you with price and delivery for your special Step Type Reamers.

Thank you for using Lexington Cutter for your Step Type Reamers.