Fractional


TOOL SELECTOR
CHIP
CLASS
MATERIAL MACHINEDTOOL TYPE
 20  NON-FERROUS - LONG CHIPS  427 
 40  NON-FERROUS - SHORT CHIPS  427 / 428 
 60  CAST IRONS  428 
 80  LOW STRENGTH STEELS  429 / 428 
 100  MEDIUM STRENGTH STEELS  429 
 120  HIGH STRENGTH STEELS  429 
 140  HIGH TEMPERATURE ALLOYS  429

Type 427 Fractional - For Non-Ferrous Materials
Carbide Tipped
  • Coolant outlets in each flute
  • Polished flutes; flute long carbide on .2841" tool diameter and larger
  • Left spiral flutes should not be used on blind holes
  • 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
  • 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
  • Shortened shank or reduced shank diameter
  • Flat(s) or tang on shank
  • Coatings available:
     TITANIUM NITRIDE - TiN 
     TITANIUM CARBONITRIDE - TiCN 
     ZIRCONIUM NITRIDE - ZrN 
     AL TITANIUM NITRIDE - AITiN 
Use:
  • Flute coolant outlets for reaming thru holes as chips are flushed forward through the hole being reamed
  • Improves hole finish and permits higher feeds & speeds with longer tool life
Below is a list of standard Coolant Fed Reamers offered by Hannibal Carbide Tool. If you do not see the Coolant Fed Reamers you are looking for you can click here for our SPECIAL TOOL QUOTE REQUEST FORM and fax (573-221-1140) or email your request to Hannibal. Within 24 hours we will let you know how we can supply your Coolant Fed Reamers. For technical assistance with your Reamers please click here to fill out and submit our HANNIBAL TECHNICAL SUPPORT QUESTIONNAIRE.
Tool Diameter Type 427
EDP NO.
Fractional
Price
Dimensions Finished To Modified Tool Diameter
Max. Shank Diam. 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/  .2500 42708 $140.95  .2405 4  1/    1/          .2381  .2530 $175.60 $158.20 $152.45 $149.60 $146.65 $144.35
   9/32  .2813 42709 149.45  .2485 4  1/    1/          .2531  .2840 184.05 166.80 161.00 158.20 155.30 152.90
   5/16  .3125 42710 157.95  .2792 4  1/  1/          .2841  .3150 192.55 175.15 169.40 166.65 163.60 161.35
  11/32  .3438 42711 159.15  .2792 4  1/  1/          .3151  .3470 193.70 176.35 170.60 167.85 164.90 162.50
   3/  .3750 42712 160.70  .3105 4  3/  3/          .3471  .3780 195.40 178.05 172.25 169.45 166.45 164.20
  13/32  .4063 42713 161.40  .3105 4  3/  3/          .3781  .4090 196.00 178.70 172.85 170.15 167.10 164.85
   7/16  .4375 42714 162.90  .3730 6  3/  3/          .4091  .4410 197.60 180.20 174.40 171.65 168.75 166.30
  15/32  .4688 42715 164.35  .3730 6  3/  3/          .4411  .4720 198.95 181.65 175.85 173.10 170.15 167.80
   1/  .5000 42716 166.45  .4355 6                          .4721  .5030 201.15 183.75 177.95 175.15 172.25 169.90
  17/32  .5313 42717 169.95  .4355 6                          .5031  .5340 204.60 187.20 181.45 178.70 175.70 173.35
   9/16  .5625 42718 172.40  .4355 6                          .5341  .5660 207.05 189.70 183.90 181.15 178.15 175.85
  19/32  .5938 42719 176.00  .4355 6                          .5661  .5970 210.60 193.35 187.50 184.75 181.80 179.45
   5/  .6250 42720 179.30  .5615 6  1/  1/          .5971  .6280 213.90 196.60 190.75 188.00 185.00 182.70
  21/32  .6563 42721 198.55  .5615 6  1/  1/          .6281  .6590 233.20 215.85 210.05 207.30 204.30 201.95
  11/16  .6875 42722 202.55  .5615 6  1/  1/          .6591  .6910 237.20 219.90 214.05 211.30 208.35 206.00
  23/32  .7188 42723 206.90  .5615 6  1/  1/          .6911  .7220 241.50 224.15 218.35 215.60 212.65 210.30
   3/  .7500 42724 211.30  .6245 6  1/  1/  1/  .7221  .7530 245.90 228.60 222.75 220.05 217.05 214.70
  25/32  .7813 42725 214.90  .6245 6  1/  1/  1/  .7531  .7840 249.50 232.20 226.35 223.60 220.60 218.30
  13/16  .8125 42726 217.50  .6245 6  1/  1/  1/  .7841  .8160 252.05 234.80 229.00 226.20 223.30 220.90
  27/32  .8438 42727 221.50  .6245 6  1/  1/  1/  .8161  .8470 256.15 238.80 232.95 230.20 227.20 224.90
   7/  .8750 42728 233.50  .7495 6  5/  5/ 10          .8471  .8780 269.45 251.50 245.40 242.55 239.45 237.00
  29/32  .9063 42729 247.25  .7495 6  5/  5/ 10          .8781  .9090 283.20 265.15 259.15 256.30 253.25 250.80
  15/16  .9375 42730 259.35  .7495 8  5/  5/ 10          .9091  .9410 295.20 277.25 271.20 268.35 265.20 262.85
  31/32  .9688 42731 260.00  .7495 8  5/  5/ 10          .9411  .9720 295.90 277.95 271.85 269.00 265.90 263.45
        1.0000 42732 260.35  .8745 8  3/  3/ 10  1/  .9721 1.0030 296.25 278.30 272.25 269.35 266.25 263.85
 1/16 1.0625 42734 275.25  .8745 8  3/  3/ 10  1/ 1.0031 1.0660 311.15 293.15 287.15 284.25 281.20 278.75
 1/ 1.1250 42736 276.45  .8745 8  7/  7/ 11         1.0661 1.1280 312.35 294.30 288.30 285.40 282.40 279.95
 3/16 1.1875 42738 287.85  .9995 8  7/  7/ 11         1.1281 1.1905 323.70 305.70 299.70 296.85 293.80 291.35
 1/ 1.2500 42740 291.60  .9995 8                 11  1/ 1.1906 1.2530 327.55 309.55 303.55 300.65 297.55 295.15
 5/16 1.3125 42742 300.05  .9995 8                 11  1/ 1.2531 1.3155 335.95 317.95 311.85 309.05 305.95 303.55
 3/ 1.3750 42744 312.10  .9995 8  1/  1/ 12         1.3156 1.3780 348.10 330.10 324.00 321.20 318.10 315.65
 7/16 1.4375 42746 321.85  .9995 8  1/  1/ 12         1.3781 1.4405 357.85 339.80 333.80 330.95 327.90 325.40
 1/ 1.5000 42748 332.70 1.2495 8  1/  1/ 12  1/ 1.4406 1.5030 368.60 350.65 344.60 341.70 338.60 336.20
* Quantities of 15 or more - price of fractional size in same size range