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 $132.95  .2405 4  1/    1/          .2381  .2530 $165.65 $149.25 $143.80 $141.15 $138.35 $136.20
   9/32  .2813 42709 141.00  .2485 4  1/    1/          .2531  .2840 173.65 157.35 151.90 149.25 146.50 144.25
   5/16  .3125 42710 149.00  .2792 4  1/  1/          .2841  .3150 181.65 165.25 159.80 157.20 154.35 152.20
  11/32  .3438 42711 150.15  .2792 4  1/  1/          .3151  .3470 182.75 166.35 160.95 158.35 155.55 153.30
   3/  .3750 42712 151.60  .3105 4  3/  3/          .3471  .3780 184.35 167.95 162.50 159.85 157.05 154.90
  13/32  .4063 42713 152.25  .3105 4  3/  3/          .3781  .4090 184.90 168.60 163.05 160.50 157.65 155.50
   7/16  .4375 42714 153.70  .3730 6  3/  3/          .4091  .4410 186.40 170.00 164.55 161.95 159.20 156.90
  15/32  .4688 42715 155.05  .3730 6  3/  3/          .4411  .4720 187.70 171.35 165.90 163.30 160.50 158.30
   1/  .5000 42716 157.05  .4355 6                          .4721  .5030 189.75 173.35 167.90 165.25 162.50 160.30
  17/32  .5313 42717 160.35  .4355 6                          .5031  .5340 193.00 176.60 171.20 168.60 165.75 163.55
   9/16  .5625 42718 162.65  .4355 6                          .5341  .5660 195.35 178.95 173.50 170.90 168.05 165.90
  19/32  .5938 42719 166.05  .4355 6                          .5661  .5970 198.70 182.40 176.90 174.30 171.50 169.30
   5/  .6250 42720 169.15  .5615 6  1/  1/          .5971  .6280 201.80 185.45 179.95 177.35 174.55 172.35
  21/32  .6563 42721 187.30  .5615 6  1/  1/          .6281  .6590 220.00 203.65 198.15 195.55 192.75 190.50
  11/16  .6875 42722 191.10  .5615 6  1/  1/          .6591  .6910 223.75 207.45 201.95 199.35 196.55 194.35
  23/32  .7188 42723 195.20  .5615 6  1/  1/          .6911  .7220 227.85 211.45 206.00 203.40 200.60 198.40
   3/  .7500 42724 199.35  .6245 6  1/  1/  1/  .7221  .7530 232.00 215.65 210.15 207.60 204.75 202.55
  25/32  .7813 42725 202.75  .6245 6  1/  1/  1/  .7531  .7840 235.40 219.05 213.55 210.95 208.10 205.95
  13/16  .8125 42726 205.20  .6245 6  1/  1/  1/  .7841  .8160 237.80 221.50 216.05 213.40 210.65 208.40
  27/32  .8438 42727 208.95  .6245 6  1/  1/  1/  .8161  .8470 241.65 225.30 219.75 217.15 214.35 212.15
   7/  .8750 42728 220.30  .7495 6  5/  5/ 10          .8471  .8780 254.20 237.25 231.50 228.80 225.90 223.60
  29/32  .9063 42729 233.25  .7495 6  5/  5/ 10          .8781  .9090 267.15 250.15 244.50 241.80 238.90 236.60
  15/16  .9375 42730 244.65  .7495 8  5/  5/ 10          .9091  .9410 278.50 261.55 255.85 253.15 250.20 247.95
  31/32  .9688 42731 245.30  .7495 8  5/  5/ 10          .9411  .9720 279.15 262.20 256.45 253.75 250.85 248.55
        1.0000 42732 245.60  .8745 8  3/  3/ 10  1/  .9721 1.0030 279.50 262.55 256.85 254.10 251.20 248.90
 1/16 1.0625 42734 259.65  .8745 8  3/  3/ 10  1/ 1.0031 1.0660 293.55 276.55 270.90 268.15 265.30 262.95
 1/ 1.1250 42736 260.80  .8745 8  7/  7/ 11         1.0661 1.1280 294.65 277.65 272.00 269.25 266.40 264.10
 3/16 1.1875 42738 271.55  .9995 8  7/  7/ 11         1.1281 1.1905 305.40 288.40 282.75 280.05 277.15 274.85
 1/ 1.2500 42740 275.10  .9995 8                 11  1/ 1.1906 1.2530 309.00 292.05 286.35 283.65 280.70 278.45
 5/16 1.3125 42742 283.05  .9995 8                 11  1/ 1.2531 1.3155 316.95 299.95 294.20 291.55 288.65 286.35
 3/ 1.3750 42744 294.45  .9995 8  1/  1/ 12         1.3156 1.3780 328.40 311.40 305.65 303.00 300.10 297.80
 7/16 1.4375 42746 303.65  .9995 8  1/  1/ 12         1.3781 1.4405 337.60 320.55 314.90 312.20 309.35 307.00
 1/ 1.5000 42748 313.85 1.2495 8  1/  1/ 12  1/ 1.4406 1.5030 347.75 330.80 325.10 322.35 319.45 317.15
* Quantities of 15 or more - price of fractional size in same size range