REAMERS
-
NAS 897
-
Right Spiral Flutes
-
Straight Shank
-
Steel
FRACTIONAL TYPE 3438 - STRAIGHT SHANK - RIGHT SPIRAL FLUTES - FOR STEEL
TYPE 3438
Carbide tips brazed to one piece hardened alloy steel bodies. Right spiral polished flutes.
Right spiral flutes have a greater chip clearing ability for use in 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 897 C with partial flute length carbide. Tool geometry and carbide grade appropriate for material being machined.
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
FLTS.		 LENGTH EDP
NO.		 PRICE
EACH		 DECIMAL
SIZE RANGE		 PRICE EACH - FINISHED TO DECIMAL SIZE
DEC. FRAC. FLT CARB OAL 1 PC. 2 PC. 3 PC. 4 PC. 5-7 8-14*
 .1875    3/16  .1805 4 1  1/8     1/2  4  1/2  343806 $60.70  .1770 -  .2040 $96.65 $78.70 $72.60 $69.70 $66.65 $64.25
 .2188    7/32  .2075 4 1  1/4     1/2  5         343807 60.70  .2041 -  .2210 96.65 78.70 72.60 69.70 66.65 64.25
 .2344   15/64  .2265 4 1  1/2     1/2  6         34382344 60.70  .2211 -  .2380 96.65 78.70 72.60 69.70 66.65 64.25
 .2500    1/4   .2405 4 1  1/2     1/2  6         343808 60.70  .2381 -  .2530 96.65 78.70 72.60 69.70 66.65 64.25
 .2812    9/32  .2485 4 1  1/2     1/2  6         343809 60.85  .2531 -  .2840 96.80 78.80 72.80 69.95 66.80 64.40
 .3125    5/16  .2792 4 1  1/2     1/2  6         343810 60.85  .2841 -  .3150 96.80 78.80 72.80 69.95 66.80 64.40
 .3438   11/32  .2792 4 1  1/2     5/8  6         343811 67.05  .3151 -  .3470 102.95 85.00 78.95 76.10 73.00 70.55
 .3750    3/8   .3105 4 1  3/4     5/8  7         343812 67.60  .3471 -  .3780 103.55 85.55 79.50 76.65 73.55 71.10
 .4062   13/32  .3105 4 1  3/4     5/8  7         343813 70.65  .3781 -  .4090 106.55 88.55 82.55 79.65 76.60 74.15
 .4375    7/16  .3730 6 1  3/4     5/8  7         343814 73.35  .4091 -  .4410 109.25 91.30 85.25 82.40 79.30 76.85
 .4688   15/32  .3730 6 1  3/4     5/8  7         343815 78.05  .4411 -  .4720 114.05 95.95 89.95 87.10 84.00 81.60
 .5000    1/2   .4355 6 2            5/8  8         343816 84.05  .4721 -  .5030 122.35 103.20 96.75 93.65 90.35 87.80
 .5312   17/32  .4355 6 2            5/8  8         343817 86.50  .5031 -  .5340 124.90 105.70 99.25 96.20 92.90 90.30
 .5625    9/16  .4355 6 2            5/8  8         343818 86.50  .5341 -  .5660 124.90 105.70 99.25 96.20 92.90 90.30
 .5938   19/32  .4355 6 2            5/8  8         343819 89.25  .5661 -  .5970 127.55 108.35 101.90 98.85 95.55 92.95
 .6250    5/8   .5615 6 2  1/4     5/8  9         343820 89.25  .5971 -  .6280 127.55 108.35 101.90 98.85 95.55 92.95
 .6562   21/32  .5615 6 2  1/4     5/8  9         343821 91.90  .6281 -  .6590 130.20 111.00 104.60 101.50 98.20 95.60
 .6875   11/16  .5615 6 2  1/4     5/8  9         343822 97.70  .6591 -  .6910 136.00 116.85 110.40 107.30 104.00 101.45
 .7188   23/32  .5615 6 2  1/4     5/8  9         343823 99.20  .6911 -  .7220 137.50 118.30 111.85 108.85 105.55 102.95
 .7500    3/4   .6245 6 2  1/2     3/4  9  1/2  343824 100.60  .7221 -  .7530 138.95 119.70 113.25 110.25 106.95 104.35
 .7812   25/32  .6245 6 2  1/2     3/4  9  1/2  343825 103.30  .7531 -  .7840 141.70 122.45 116.05 113.00 109.70 107.10
 .8125   13/16  .6245 6 2  1/2     3/4  9  1/2  343826 103.30  .7841 -  .8160 141.70 122.45 116.05 113.00 109.70 107.10
 .8438   27/32  .6245 6 2  1/2     3/4  9  1/2  343827 108.85  .8161 -  .8470 147.15 127.95 121.50 118.45 115.15 112.55
 .8750    7/8   .7495 6 2  5/8     3/4  10         343828 108.85  .8471 -  .8780 147.15 127.95 121.50 118.45 115.15 112.55
 .9062   29/32  .7495 6 2  5/8     3/4  10         343829 126.75  .8781 -  .9090 165.15 145.90 139.45 136.45 133.15 130.55
 .9375   15/16  .7495 8 2  5/8     3/4  10         343830 126.75  .9091 -  .9410 165.15 145.90 139.45 136.45 133.15 130.55
 .9688   31/32  .7495 8 2  5/8     3/4  10         343831 133.00  .9411 -  .9720 171.30 152.10 145.65 142.60 139.30 136.70
1.0000 1          .8745 8 2  3/4     3/4  10  1/2  343832 133.00  .9721 - 1.0030 171.30 152.10 145.65 142.60 139.30 136.70
1.0625 1  1/16  .8745 8 2  3/4     3/4  10  1/2  343834 142.65 1.0031 - 1.0660 181.00 161.85 155.40 152.30 149.05 146.45
1.1250 1  1/8   .8745 8 2  7/8     7/8  11         343836 147.05 1.0661 - 1.1280 185.45 166.20 159.80 156.75 153.45 150.85
1.1875 1  3/16  .9995 8 2  7/8     7/8  11         343838 154.55 1.1281 - 1.1905 192.85 173.65 167.25 164.15 160.85 158.25
1.2500 1  1/4   .9995 8 3            7/8  11  1/2  343840 163.60 1.1906 - 1.2530 201.95 182.75 176.35 173.25 169.95 167.35
1.3125 1  5/16  .9995 8 3            7/8  11  1/2  343842 181.00 1.2531 - 1.3155 219.40 200.15 193.75 190.70 187.40 184.80
1.3750 1  3/8   .9995 8 3  1/4     7/8  12         343844 198.25 1.3156 - 1.3780 236.60 217.40 211.00 207.90 204.60 202.00
1.4375 1  7/16  .9995 8 3  1/4     7/8  12         343846 210.15 1.3781 - 1.4405 248.45 229.25 222.80 219.75 216.45 213.85
1.5000 1  1/2  1.2495 8 3  1/2     7/8  12  1/2  343848 221.95 1.4406 - 1.5030 260.25 241.10 234.65 231.55 228.25 225.70
* Quantities of 15 or more: price of fractional size in same size range.