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STEP REAMER TYPE 3457 - STRAIGHT SHANK - STRAIGHT FLUTE LONG CARBIDE - FOR NON-FERROUS
TYPE
Flute long carbide tips brazed to one piece hardened alloy steel bodies. Straight polished flutes. Available with cutting or non-cutting pilots.
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+
 .1770 -  .2040  .1660  .1805 4  1/  1/ 345706ST $181.85 $136.50 $121.30 $114.10 $106.35 $100.25 $91.40
 .2041 -  .2210  .1920  .2075 4  1/         345707ST 181.85 136.50 121.30 114.10 106.35 100.25 91.40
 .2211 -  .2380  .2080  .2265 4  1/         34572344ST 181.85 136.50 121.30 114.10 106.35 100.25 91.40
 .2381 -  .2530  .2240  .2405 4  1/         345708ST 181.85 136.50 121.30 114.10 106.35 100.25 91.40
 .2531 -  .2840  .2380  .2485 4  1/         345709ST 183.95 138.60 123.40 116.20 108.50 102.35 93.45
 .2841 -  .3150  .2670  .2792 4  1/         345710ST 183.95 138.60 123.40 116.20 108.50 102.35 93.45
 .3151 -  .3470  .2960  .2792 4  1/         345711ST 187.20 141.90 126.65 119.55 111.70 105.65 96.75
 .3471 -  .3780  .3260  .3105 4  3/         345712ST 187.20 141.90 126.65 119.55 111.70 105.65 96.75
 .3781 -  .4090  .3550  .3105 4  3/         345713ST 191.95 146.70 131.55 124.30 116.55 110.40 101.55
 .4091 -  .4410  .3850  .3730 6  3/         345714ST 200.40 155.05 139.85 132.60 124.90 118.70 109.95
 .4411 -  .4720  .4150  .3730 6  3/         345715ST 209.10 163.80 148.60 141.40 133.65 127.55 118.65
 .4721 -  .5030  .4440  .4355 6                 345716ST 224.05 175.50 159.25 151.55 143.20 136.70 127.20
 .5031 -  .5340  .4730  .4355 6                 345717ST 227.70 179.20 162.95 155.25 146.85 140.30 130.85
 .5341 -  .5660  .5020  .4355 6                 345718ST 227.70 179.20 162.95 155.25 146.85 140.30 130.85
 .5661 -  .5970  .5320  .4355 6                 345719ST 232.75 184.25 168.00 160.25 151.95 145.40 135.85
 .5971 -  .6280  .5610  .5615 6  1/         345720ST 232.75 184.25 168.00 160.25 151.95 145.40 135.85
 .6281 -  .6590  .5900  .5615 6  1/         345721ST 235.25 186.75 170.45 162.70 154.40 147.85 138.40
 .6591 -  .6910  .6200  .5615 6  1/         345722ST 235.25 186.75 170.45 162.70 154.40 147.85 138.40
 .6911 -  .7220  .6500  .5615 6  1/         345723ST 241.45 192.90 176.70 169.00 160.65 154.15 144.60
 .7221 -  .7530  .6790  .6245 6  1/  1/ 345724ST 241.45 192.90 176.70 169.00 160.65 154.15 144.60
 .7531 -  .7840  .7080  .6245 6  1/  1/ 345725ST 246.40 197.90 181.70 173.95 165.55 159.10 149.60
 .7841 -  .8160  .7370  .6245 6  1/  1/ 345726ST 246.40 197.90 181.70 173.95 165.55 159.10 149.60
 .8161 -  .8470  .7670  .6245 6  1/  1/ 345727ST 252.35 203.85 187.60 179.85 171.55 165.00 155.55
 .8471 -  .8780  .7970  .7495 6  5/ 10         345728ST 261.95 211.55 194.65 186.70 178.00 171.20 161.40
 .8781 -  .9090  .8260  .7495 6  5/ 10         345729ST 288.55 238.20 221.25 213.35 204.60 197.90 188.00
 .9091 -  .9410  .8550  .7495 8  5/ 10         345730ST 288.55 238.20 221.25 213.35 204.60 197.90 188.00
 .9411 -  .9720  .8850  .7495 8  5/ 10         345731ST 297.55 247.15 230.30 222.25 213.55 206.80 196.90
 .9721 - 1.0030  .9140  .8745 8  3/ 10  1/ 345732ST 297.55 247.15 230.30 222.25 213.55 206.80 196.90
1.0031 - 1.0660  .9430  .8745 8  3/ 10  1/ 345734ST 300.10 251.80 235.50 227.85 219.60 213.10 203.70
1.0661 - 1.1280 1.0020  .8745 8  7/ 11         345736ST 316.90 268.60 252.50 244.85 236.55 230.00 220.55
1.1281 - 1.1905 1.0610  .9995 8  7/ 11         345738ST 327.05 278.65 262.50 254.85 246.55 240.05 230.60
1.1906 - 1.2530 1.1200  .9995 8         11  1/ 345740ST 345.75 297.50 281.20 273.55 265.35 258.80 249.40
1.2531 - 1.3155 1.1780  .9995 8         11  1/ 345742ST 352.60 304.30 288.20 280.50 272.25 265.65 256.20
1.3156 - 1.3780 1.2370  .9995 8  1/ 12         345744ST 369.65 321.35 305.25 297.55 289.25 282.75 273.30
1.3781 - 1.4405 1.2960  .9995 8  1/ 12         345746ST 392.20 343.85 327.65 319.95 311.70 305.25 295.75
1.4406 - 1.5030 1.3550 1.2495 8  1/ 12  1/ 345748ST 400.90 352.60 336.50 328.80 320.55 314.00 304.50

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.