DRILLS REAMERS COUNTERBORES END MILLS CUTTERS SINGLE POINTS
REAMERS - MATERIAL SPECIFIC CHUCKING REAMERS - Straight Flutes - Taper Shank
Fractional

TOOL SELECTOR
CHIP
CLASS		MATERIAL MACHINEDTOOL TYPE
 20  NON-FERROUS - LONG CHIPS  472 
 40  NON-FERROUS - SHORT CHIPS  472 / 473 
 60  CAST IRONS  473 
 80  LOW STRENGTH STEELS  474 / 473 
 100  MEDIUM STRENGTH STEELS  474 
 120  HIGH STRENGTH STEELS  474 
 140  HIGH TEMPERATURE ALLOYS  474

National Aerospace Standards - NAS 897
Type 472 Fractional - For Non-Ferrous Materials
Carbide Tipped
  • Type "C" with short carbide tip
  • Straight polished flutes and taper shank
  • Tool geometry and carbide grade appropriate for material being machined
  • Carbide tips brazed to tough hardened alloy steel body
  • Polished flutes for easy chip flow
  • Precision ground cutting edges
  • “Taper Shank No.” refers to American Standard taper series (formerly Morse taper series) per ASME/ANSI B5.10
  • Material specific reamer shanks are ground to next smallest shank diameter listed in NAS 897 if tool diameter is within .005" of shank diameter
 		  Modifications: (Prompt delivery)
  • Modified tool diameter - priced below
  • Metric tool diameter
  • Closer tool diameter tolerance
  • Cutting diameter reduced for step or pilot
  • End chamfer other than 45º
  • End cutting or corner radius
  • Increased / decreased circular margin
  • Increased / decreased tool diameter back taper
  • Shank whistle notch for set screw
  • Smaller taper shank
  • Coatings available:
     TITANIUM NITRIDE - TiN 
     TITANIUM CARBONITRIDE - TiCN 
     ZIRCONIUM NITRIDE - ZrN 
     AL TITANIUM NITRIDE - AITiN 
Tool Diameter Type 472
EDP NO.		 Fractional
Price		 Dimensions Finished To Modified Tool Diameter
Taper Shank No. No. of Flutes Length Modified Diameter Range Price Each - Based on Quantity Ordered
Frac. Dec. Flute Carbide Overall Low High 1 2 3 4 5-7 8-14*
   1/4   .2500 47208 $39.50 1 4 1  1/2     1/2  6          .2381  .2530 $66.15 $52.80 $48.35 $46.20 $43.95 $42.15
   9/32  .2813 47209 40.15 1 4 1  1/2     1/2  6          .2531  .2840 66.80 53.45 49.00 46.85 44.60 42.80
   5/16  .3125 47210 40.15 1 4 1  1/2     1/2  6          .2841  .3150 66.80 53.45 49.00 46.85 44.60 42.80
  11/32  .3438 47211 41.40 1 4 1  1/2     5/8  6          .3151  .3470 68.05 54.70 50.25 48.10 45.85 44.05
   3/8   .3750 47212 38.25 1 4 1  3/4     5/8  7          .3471  .3780 62.70 50.45 46.35 44.40 42.30 40.65
  13/32  .4063 47213 43.75 1 4 1  3/4     5/8  7          .3781  .4090 70.40 57.05 52.60 50.45 48.20 46.40
   7/16  .4375 47214 46.60 1 6 1  3/4     5/8  7          .4091  .4410 73.25 59.90 55.45 53.30 51.00 49.20
  15/32  .4688 47215 47.85 1 6 1  3/4     5/8  7          .4411  .4720 74.50 61.15 56.70 54.55 52.25 50.45
   1/2   .5000 47216 54.80 1 6 2            5/8  8          .4721  .5030 84.10 69.40 64.50 62.15 59.65 57.65
  17/32  .5313 47217 58.20 1 6 2            5/8  8          .5031  .5340 87.55 72.85 67.90 65.60 63.05 61.10
   9/16  .5625 47218 58.20 1 6 2            5/8  8          .5341  .5660 87.55 72.85 67.90 65.60 63.05 61.10
  19/32  .5938 47219 61.90 1 6 2            5/8  8          .5661  .5970 91.25 76.55 71.65 69.30 66.80 64.80
   5/8   .6250 47220 61.90 2 6 2  1/4     5/8  9          .5971  .6280 91.25 76.55 71.65 69.30 66.80 64.80
  21/32  .6563 47221 62.95 2 6 2  1/4     5/8  9          .6281  .6590 92.30 77.60 72.65 70.30 67.80 65.80
  11/16  .6875 47222 62.95 2 6 2  1/4     5/8  9          .6591  .6910 92.30 77.60 72.65 70.30 67.80 65.80
  23/32  .7188 47223 65.45 2 6 2  1/4     5/8  9          .6911  .7220 94.80 80.10 75.20 72.85 70.30 68.35
   3/4   .7500 47224 65.45 2 6 2  1/2     3/4  9  1/2   .7221  .7530 94.80 80.10 75.20 72.85 70.30 68.35
  25/32  .7813 47225 67.00 2 6 2  1/2     3/4  9  1/2   .7531  .7840 96.35 81.65 76.75 74.40 71.90 69.90
  13/16  .8125 47226 67.00 2 6 2  1/2     3/4  9  1/2   .7841  .8160 96.35 81.65 76.75 74.40 71.90 69.90
  27/32  .8438 47227 70.25 2 6 2  1/2     3/4  9  1/2   .8161  .8470 99.60 84.90 80.00 77.65 75.10 73.15
   7/8   .8750 47228 70.25 2 6 2  5/8     3/4  10          .8471  .8780 99.60 84.90 80.00 77.65 75.10 73.15
  29/32  .9063 47229 85.50 2 6 2  5/8     3/4  10          .8781  .9090 114.85 100.15 95.20 92.90 90.35 88.40
  15/16  .9375 47230 85.50 3 8 2  5/8     3/4  10          .9091  .9410 114.85 100.15 95.20 92.90 90.35 88.40
  31/32  .9688 47231 88.00 3 8 2  5/8     3/4  10          .9411  .9720 117.35 102.65 97.75 95.40 92.90 90.90
1         1.0000 47232 88.00 3 8 2  3/4     3/4  10  1/2   .9721 1.0030 117.35 102.65 97.75 95.40 92.90 90.90
1  1/16 1.0625 47234 108.70 3 8 2  3/4     3/4  10  1/2  1.0031 1.0660 136.80 122.70 118.00 115.75 113.35 111.45
1  1/8  1.1250 47236 115.40 3 8 2  7/8     7/8  11         1.0661 1.1280 143.50 129.45 124.70 122.50 120.05 118.15
1  3/16 1.1875 47238 126.15 3 8 2  7/8     7/8  11         1.1281 1.1905 154.25 140.20 135.45 133.25 130.80 128.90
1  1/4  1.2500 47240 137.00 4 8 3            7/8  11  1/2  1.1906 1.2530 165.15 151.05 146.35 144.10 141.70 139.80
1  5/16 1.3125 47242 144.75 4 8 3            7/8  11  1/2  1.2531 1.3155 172.85 158.75 154.05 151.80 149.40 147.50
1  3/8  1.3750 47244 152.45 4 8 3  1/4     7/8  12         1.3156 1.3780 180.55 166.45 161.75 159.50 157.10 155.20
1  7/16 1.4375 47246 161.15 4 8 3  1/4     7/8  12         1.3781 1.4405 189.30 175.20 170.50 168.25 165.85 163.95
1  1/2  1.5000 47248 169.80 4 8 3  1/2     7/8  12  1/2  1.4406 1.5030 197.90 183.85 179.10 176.85 174.45 172.55
1  9/16 1.5625 47250 199.20 4 8 3  1/2     7/8  12  1/2  1.5031 1.5660 227.30 213.20 208.50 206.25 203.85 201.95
1  5/8  1.6250 47252 206.10 4 8 3  3/4     7/8  13         1.5661 1.6280 234.20 220.10 215.40 213.15 210.75 208.85
1 11/16 1.6875 47254 231.80 4 8 3  3/4     7/8  13         1.6281 1.6910 259.90 245.80 241.10 238.85 236.45 234.55
1  3/4  1.7500 47256 231.80 4 10 4            7/8  13  1/2  1.6911 1.7530 259.90 245.80 241.10 238.85 236.45 234.55
1 13/16 1.8125 47258 231.80 4 10 4            7/8  13  1/2  1.7531 1.8160 259.90 245.80 241.10 238.85 236.45 234.55
1  7/8  1.8750 47260 242.80 4 10 4  1/4     7/8  14         1.8161 1.8780 270.95 256.85 252.15 249.90 247.50 245.60
1 15/16 1.9375 47262 242.80 4 10 4  1/4     7/8  14         1.8781 1.9410 270.95 256.85 252.15 249.90 247.50 245.60
2         2.0000 47264 242.80 4 12 4  1/4     7/8  14         1.9411 2.0030 270.95 256.85 252.15 249.90 247.50 245.60
* Quantities of 15 or more - price of fractional size in same size range