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STEP REAMER TYPE 3459 - STRAIGHT SHANK - STRAIGHT FLUTE LONG CARBIDE - FOR STEEL
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/ 345906ST $171.55 $128.80 $114.45 $107.65 $100.30 $94.55 $86.25
 .2041 -  .2210  .1920  .2075 4  1/         345907ST 171.55 128.80 114.45 107.65 100.30 94.55 86.25
 .2211 -  .2380  .2080  .2265 4  1/         34592344ST 171.55 128.80 114.45 107.65 100.30 94.55 86.25
 .2381 -  .2530  .2240  .2405 4  1/         345908ST 171.55 128.80 114.45 107.65 100.30 94.55 86.25
 .2531 -  .2840  .2380  .2485 4  1/         345909ST 173.55 130.75 116.40 109.60 102.35 96.55 88.15
 .2841 -  .3150  .2670  .2792 4  1/         345910ST 173.55 130.75 116.40 109.60 102.35 96.55 88.15
 .3151 -  .3470  .2960  .2792 4  1/         345911ST 176.60 133.85 119.50 112.75 105.40 99.70 91.30
 .3471 -  .3780  .3260  .3105 4  3/         345912ST 176.60 133.85 119.50 112.75 105.40 99.70 91.30
 .3781 -  .4090  .3550  .3105 4  3/         345913ST 181.10 138.40 124.10 117.25 109.95 104.15 95.85
 .4091 -  .4410  .3850  .3730 6  3/         345914ST 189.05 146.30 131.95 125.10 117.80 112.00 103.75
 .4411 -  .4720  .4150  .3730 6  3/         345915ST 197.25 154.55 140.20 133.40 126.05 120.35 111.95
 .4721 -  .5030  .4440  .4355 6                 345916ST 211.40 165.55 150.20 142.95 135.10 128.95 120.00
 .5031 -  .5340  .4730  .4355 6                 345917ST 214.85 169.05 153.70 146.45 138.55 132.35 123.40
 .5341 -  .5660  .5020  .4355 6                 345918ST 214.85 169.05 153.70 146.45 138.55 132.35 123.40
 .5661 -  .5970  .5320  .4355 6                 345919ST 219.60 173.80 158.50 151.15 143.35 137.15 128.15
 .5971 -  .6280  .5610  .5615 6  1/         345920ST 219.60 173.80 158.50 151.15 143.35 137.15 128.15
 .6281 -  .6590  .5900  .5615 6  1/         345921ST 221.95 176.20 160.80 153.45 145.65 139.45 130.55
 .6591 -  .6910  .6200  .5615 6  1/         345922ST 221.95 176.20 160.80 153.45 145.65 139.45 130.55
 .6911 -  .7220  .6500  .5615 6  1/         345923ST 227.80 182.00 166.65 159.40 151.55 145.40 136.45
 .7221 -  .7530  .6790  .6245 6  1/  1/ 345924ST 227.80 182.00 166.65 159.40 151.55 145.40 136.45
 .7531 -  .7840  .7080  .6245 6  1/  1/ 345925ST 232.45 186.70 171.45 164.10 156.15 150.10 141.10
 .7841 -  .8160  .7370  .6245 6  1/  1/ 345926ST 232.45 186.70 171.45 164.10 156.15 150.10 141.10
 .8161 -  .8470  .7670  .6245 6  1/  1/ 345927ST 238.05 192.30 176.95 169.70 161.85 155.70 146.70
 .8471 -  .8780  .7970  .7495 6  5/ 10         345928ST 247.10 199.55 183.70 176.10 167.95 161.55 152.25
 .8781 -  .9090  .8260  .7495 6  5/ 10         345929ST 272.25 224.70 208.75 201.25 193.05 186.70 177.40
 .9091 -  .9410  .8550  .7495 8  5/ 10         345930ST 272.25 224.70 208.75 201.25 193.05 186.70 177.40
 .9411 -  .9720  .8850  .7495 8  5/ 10         345931ST 280.70 233.15 217.30 209.65 201.45 195.10 185.80
 .9721 - 1.0030  .9140  .8745 8  3/ 10  1/ 345932ST 280.70 233.15 217.30 209.65 201.45 195.10 185.80
1.0031 - 1.0660  .9430  .8745 8  3/ 10  1/ 345934ST 283.10 237.50 222.20 214.95 207.15 201.05 192.15
1.0661 - 1.1280 1.0020  .8745 8  7/ 11         345936ST 298.95 253.40 238.20 231.00 223.15 217.00 208.10
1.1281 - 1.1905 1.0610  .9995 8  7/ 11         345938ST 308.55 262.90 247.65 240.45 232.60 226.45 217.55
1.1906 - 1.2530 1.1200  .9995 8         11  1/ 345940ST 326.15 280.65 265.30 258.10 250.30 244.15 235.25
1.2531 - 1.3155 1.1780  .9995 8         11  1/ 345942ST 332.65 287.05 271.90 264.60 256.85 250.60 241.70
1.3156 - 1.3780 1.2370  .9995 8  1/ 12         345944ST 348.75 303.15 288.00 280.70 272.85 266.70 257.80
1.3781 - 1.4405 1.2960  .9995 8  1/ 12         345946ST 370.00 324.40 309.10 301.85 294.05 288.00 279.00
1.4406 - 1.5030 1.3550 1.2495 8  1/ 12  1/ 345948ST 378.20 332.65 317.45 310.15 302.40 296.25 287.30

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.