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FRACTIONAL TYPE 3468 - STRAIGHT SHANK - STRAIGHT FLUTE LONG CARBIDE - FOR STEEL
TYPE
Flute long carbide tips brazed to one piece hardened alloy steel bodies. Straight polished flutes. Tool geometry and carbide grade appropriate for material being machined.
NAS 897 expansion reamers manufactured to national aerospace standards 897 C. Designed and manufactured for maximum tool life. Expansion reamers are recommended for reaming abrasive materials and as the diameter wears down, the reamers can be expanded many times by tightening the end adjusting screw and regrinding to its original size. Expansion reamers should not be considered as adjustable for use in producing holes of several sizes.
TOOL
DIAMETER		 MINIMUM
EXPANSION
5/16" - 15/32" .006"
1/2" - 31/32" .010"
1" - 11/2" .013"
19/16" - 21/2" .015"
Below is Lexington Cutter's selection of NAS 897 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.
TOOL DIAMETER MAX
SHANK
DIAM.		 NO. OF
FLUTES		 FLT.
LEN.		 OVER
ALL
LEN.		 EDP
NO.		 PRICE
EACH		 DECIMAL
SIZE RANGE		 PRICE EACH - FINISHED TO DECIMAL SIZE
DEC. FRAC. 1 PC. 2 PC. 3 PC. 4 PC. 5-7 8-14*
 .3125    5/16  .2792 4 1         6         346810 $93.80  .2841 -  .3150 $134.45 $114.10 $107.30 $104.00 $100.50 $97.80
 .3438   11/32  .2792 4 1         6         346811 93.80  .3151 -  .3470 134.45 114.10 107.30 104.00 100.50 97.80
 .3750    3/8   .3105 4 1         7         346812 88.60  .3471 -  .3780 126.65 107.60 101.20 98.15 94.90 92.35
 .4062   13/32  .3105 4 1         7         346813 93.30  .3781 -  .4090 131.40 112.35 106.00 102.90 99.70 97.00
 .4375    7/16  .3730 6 1         7         346814 93.30  .4091 -  .4410 131.40 112.35 106.00 102.90 99.70 97.00
 .4688   15/32  .3730 6 1         7         346815 98.85  .4411 -  .4720 137.00 117.90 111.50 108.50 105.20 102.60
 .5000    1/2   .4355 6 1         8         346816 98.85  .4721 -  .5030 137.00 117.90 111.50 108.50 105.20 102.60
 .5312   17/32  .4355 6 1         8         346817 101.45  .5031 -  .5340 139.60 120.40 114.05 111.00 107.75 105.20
 .5625    9/16  .4355 6 1  1/8  8         346818 101.45  .5341 -  .5660 139.60 120.40 114.05 111.00 107.75 105.20
 .5938   19/32  .4355 6 1  1/8  8         346819 105.85  .5661 -  .5970 143.85 124.80 118.45 115.35 112.15 109.55
 .6250    5/8   .5615 6 1  1/4  9         346820 105.85  .5971 -  .6280 143.85 124.80 118.45 115.35 112.15 109.55
 .6562   21/32  .5615 6 1  1/4  9         346821 115.70  .6281 -  .6590 153.80 134.70 128.30 125.25 122.00 119.50
 .6875   11/16  .5615 6 1  1/4  9         346822 115.70  .6591 -  .6910 153.80 134.70 128.30 125.25 122.00 119.50
 .7188   23/32  .5615 6 1  1/4  9         346823 120.05  .6911 -  .7220 158.20 139.00 132.65 129.65 126.35 123.75
 .7500    3/4   .6245 6 1  3/8  9  1/2  346824 120.05  .7221 -  .7530 158.20 139.00 132.65 129.65 126.35 123.75
 .7812   25/32  .6245 6 1  3/8  9  1/2  346825 129.45  .7531 -  .7840 167.50 148.40 142.05 138.95 135.75 133.15
 .8125   13/16  .6245 6 1  3/8  9  1/2  346826 129.45  .7841 -  .8160 167.50 148.40 142.05 138.95 135.75 133.15
 .8438   27/32  .6245 6 1  3/8  9  1/2  346827 134.45  .8161 -  .8470 172.60 153.45 147.05 144.00 140.75 138.25
 .8750    7/8   .7495 6 1  1/2  10         346828 139.50  .8471 -  .8780 179.15 159.25 152.60 149.45 146.10 143.45
 .9062   29/32  .7495 6 1  1/2  10         346829 148.55  .8781 -  .9090 188.00 168.30 161.65 158.50 155.05 152.40
 .9375   15/16  .7495 8 1  1/2  10         346830 148.55  .9091 -  .9410 188.00 168.30 161.65 158.50 155.05 152.40
 .9688   31/32  .7495 8 1  1/2  10         346831 154.20  .9411 -  .9720 193.85 174.00 167.35 164.20 160.80 158.15
1.0000 1          .8745 8 1  5/8  10  1/2  346832 154.20  .9721 - 1.0030 193.85 174.00 167.35 164.20 160.80 158.15
1.0312 1  1/32  .8745 8 1  5/8  10  1/2  346833 169.10 — — — — — — —
1.0625 1  1/16  .8745 8 1  5/8  10  1/2  346834 169.10 1.0031 - 1.0660 208.60 188.80 182.20 179.05 175.65 172.95
1.0938 1  3/32  .8745 8 1  3/4  11         346835 169.10 — — — — — — —
1.1250 1  1/8   .8745 8 1  3/4  11         346836 169.10 1.0661 - 1.1280 208.60 188.80 182.20 179.05 175.65 172.95
1.1875 1  3/16  .9995 8 1  3/4  11         346838 184.60 1.1281 - 1.1905 224.15 204.25 197.70 194.55 191.10 188.50
1.2500 1  1/4   .9995 8 1  7/8  11  1/2  346840 184.60 1.1906 - 1.2530 224.15 204.25 197.70 194.55 191.10 188.50
1.3125 1  5/16  .9995 8 1  7/8  11  1/2  346842 203.85 1.2531 - 1.3155 243.30 223.50 216.95 213.80 210.35 207.70
1.3750 1  3/8   .9995 8 2         12         346844 214.20 1.3156 - 1.3780 253.80 234.00 227.35 224.20 220.85 218.10
1.4375 1  7/16  .9995 8 2         12         346846 252.40 1.3781 - 1.4405 294.65 273.50 266.40 263.05 259.40 256.55
1.5000 1  1/2  1.2495 8 2  1/8  12  1/2  346848 259.55 1.4406 - 1.5030 301.75 280.55 273.55 270.20 266.55 263.75
1.5625 1  9/16 1.2495 8 2  1/8  12  1/2  346850 340.95 1.5031 - 1.5660 383.20 362.05 354.95 351.60 347.95 345.10
1.6250 1  5/8  1.2495 8 2  1/4  13         346852 340.95 1.5661 - 1.6280 383.20 362.05 354.95 351.60 347.95 345.10
1.6875 1 11/16 1.2495 8 2  1/4  13         346854 377.60 1.6281 - 1.6910 419.80 398.70 391.65 388.20 384.65 381.80
1.7500 1  3/4  1.2495 10 2  3/8  13  1/2  346856 377.60 1.6911 - 1.7530 419.80 398.70 391.65 388.20 384.65 381.80
1.8125 1 13/16 1.4995 10 2  3/8  13  1/2  346858 447.15 1.7531 - 1.8160 489.35 468.15 461.15 457.80 454.15 451.30
1.8750 1  7/8  1.4995 10 2  1/2  14         346860 447.15 1.8161 - 1.8780 489.35 468.15 461.15 457.80 454.15 451.30
1.9375 1 15/16 1.4995 10 2  1/2  14         346862 488.60 1.8781 - 1.9410 530.65 509.60 502.55 499.15 495.60 492.75
2.0000 2         1.4995 12 2  1/2  14         346864 488.60 1.9411 - 2.0030 530.65 509.60 502.55 499.15 495.60 492.75
* Quantities of 15 or more: price of fractional size in same size range.

Do you need special NAS 897 Reamers?

If you can't find the specific NAS 897 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 NAS 897 Reamers.

Thank you for using Lexington Cutter for your NAS 897 Reamers.