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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  1/8  4  1/2  345706ST $163.40 $122.65 $109.00 $102.55 $95.55 $90.10 $82.10
 .2041 -  .2210  .1920  .2075 4 1  1/4  5         345707ST 163.40 122.65 109.00 102.55 95.55 90.10 82.10
 .2211 -  .2380  .2080  .2265 4 1  1/2  6         34572344ST 163.40 122.65 109.00 102.55 95.55 90.10 82.10
 .2381 -  .2530  .2240  .2405 4 1  1/2  6         345708ST 163.40 122.65 109.00 102.55 95.55 90.10 82.10
 .2531 -  .2840  .2380  .2485 4 1  1/2  6         345709ST 165.25 124.55 110.90 104.35 97.45 91.90 83.95
 .2841 -  .3150  .2670  .2792 4 1  1/2  6         345710ST 165.25 124.55 110.90 104.35 97.45 91.90 83.95
 .3151 -  .3470  .2960  .2792 4 1  1/2  6         345711ST 168.20 127.45 113.80 107.40 100.40 94.90 86.95
 .3471 -  .3780  .3260  .3105 4 1  3/4  7         345712ST 168.20 127.45 113.80 107.40 100.40 94.90 86.95
 .3781 -  .4090  .3550  .3105 4 1  3/4  7         345713ST 172.55 131.80 118.25 111.65 104.70 99.20 91.30
 .4091 -  .4410  .3850  .3730 6 1  3/4  7         345714ST 180.05 139.30 125.65 119.15 112.20 106.70 98.75
 .4411 -  .4720  .4150  .3730 6 1  3/4  7         345715ST 187.90 147.20 133.55 127.05 120.05 114.60 106.60
 .4721 -  .5030  .4440  .4355 6 2         8         345716ST 201.30 157.70 143.10 136.15 128.65 122.80 114.25
 .5031 -  .5340  .4730  .4355 6 2         8         345717ST 204.60 161.00 146.35 139.45 131.95 126.05 117.55
 .5341 -  .5660  .5020  .4355 6 2         8         345718ST 204.60 161.00 146.35 139.45 131.95 126.05 117.55
 .5661 -  .5970  .5320  .4355 6 2         8         345719ST 209.15 165.55 150.90 143.90 136.50 130.60 122.10
 .5971 -  .6280  .5610  .5615 6 2  1/4  9         345720ST 209.15 165.55 150.90 143.90 136.50 130.60 122.10
 .6281 -  .6590  .5900  .5615 6 2  1/4  9         345721ST 211.40 167.80 153.15 146.15 138.75 132.80 124.30
 .6591 -  .6910  .6200  .5615 6 2  1/4  9         345722ST 211.40 167.80 153.15 146.15 138.75 132.80 124.30
 .6911 -  .7220  .6500  .5615 6 2  1/4  9         345723ST 216.95 173.30 158.75 151.85 144.35 138.45 129.90
 .7221 -  .7530  .6790  .6245 6 2  1/2  9  1/2  345724ST 216.95 173.30 158.75 151.85 144.35 138.45 129.90
 .7531 -  .7840  .7080  .6245 6 2  1/2  9  1/2  345725ST 221.40 177.80 163.25 156.25 148.75 142.95 134.40
 .7841 -  .8160  .7370  .6245 6 2  1/2  9  1/2  345726ST 221.40 177.80 163.25 156.25 148.75 142.95 134.40
 .8161 -  .8470  .7670  .6245 6 2  1/2  9  1/2  345727ST 226.75 183.10 168.55 161.65 154.15 148.25 139.70
 .8471 -  .8780  .7970  .7495 6 2  5/8  10         345728ST 235.35 190.05 174.95 167.70 159.95 153.85 144.95
 .8781 -  .9090  .8260  .7495 6 2  5/8  10         345729ST 259.30 214.00 198.80 191.65 183.90 177.80 168.90
 .9091 -  .9410  .8550  .7495 8 2  5/8  10         345730ST 259.30 214.00 198.80 191.65 183.90 177.80 168.90
 .9411 -  .9720  .8850  .7495 8 2  5/8  10         345731ST 267.35 222.05 206.90 199.65 191.85 185.80 176.95
 .9721 - 1.0030  .9140  .8745 8 2  3/4  10  1/2  345732ST 267.35 222.05 206.90 199.65 191.85 185.80 176.95
1.0031 - 1.0660  .9430  .8745 8 2  3/4  10  1/2  345734ST 269.55 226.15 211.60 204.75 197.25 191.45 183.00
1.0661 - 1.1280 1.0020  .8745 8 2  7/8  11         345736ST 284.75 241.45 226.85 220.00 212.50 206.65 198.15
1.1281 - 1.1905 1.0610  .9995 8 2  7/8  11         345738ST 293.85 250.40 235.90 228.95 221.55 215.65 207.20
1.1906 - 1.2530 1.1200  .9995 8 3         11  1/2  345740ST 310.60 267.25 252.70 245.75 238.40 232.55 224.05
1.2531 - 1.3155 1.1780  .9995 8 3         11  1/2  345742ST 316.90 273.40 258.95 252.00 244.60 238.70 230.25
1.3156 - 1.3780 1.2370  .9995 8 3  1/4  12         345744ST 332.15 288.75 274.25 267.35 259.90 254.05 245.55
1.3781 - 1.4405 1.2960  .9995 8 3  1/4  12         345746ST 352.40 308.90 294.40 287.50 280.05 274.25 265.70
1.4406 - 1.5030 1.3550 1.2495 8 3  1/2  12  1/2  345748ST 360.20 316.90 302.35 295.40 288.00 282.10 273.65

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.