Fractional


TOOL SELECTOR
CHIP
CLASS		MATERIAL MACHINEDTOOL TYPE
 20  NON-FERROUS - LONG CHIPS  522 
 40  NON-FERROUS - SHORT CHIPS  522 
 60  CAST IRONS  522 
 80  LOW STRENGTH STEELS  522 
 100  MEDIUM STRENGTH STEELS  522 
 120  HIGH STRENGTH STEELS  522 
 140  HIGH TEMPERATURE ALLOYS  522

Type 522 Fractional - Straight Shank
Carbide Tipped
  • 3 Flutes
  • Furnished with 1/64" courner radius
  • Carbide tips brazed to tough alloy steel body
  • Tool diameter tolerance: plus .001", minus .000"
  • Shank diameter tolerance: plus .0000", minus .0005"
  • Geometry and carbide grade appropriate for material being machined
  • Precision ground cutting edges
  • USCTI
 		  Modifications: (Prompt delivery)
  • Modified tool diameter - priced below
  • Metric tool diameter
  • Cutting diameter reduced for step
  • Corner chamfer or corner radius
  • Coatings available:
    •  TITANIUM NITRIDE - TiN 
     TITANIUM CARBONITRIDE - TiCN 
     ZIRCONIUM NITRIDE - ZrN 
     AL TITANIUM NITRIDE - AITiN 
Use:
  • For counterboring and spotfacing non-ferrous materials, composites, and non-metals used in airframe manufacturing
Below is a list of standard Aircraft Counterbores offered by Hannibal Carbide Tool. If you do not see the Aircraft Counterbores 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 Aircraft Counterbores. For technical assistance with your Counterbores please click here to fill out and submit our HANNIBAL TECHNICAL SUPPORT QUESTIONNAIRE.
Tool Diameter Dimensions Type 522
EDP NO.		 Fractional
Price		 Finished To Modified Tool Diameter
Diameter Overall Length Modified Diameter Range Price Each - Based on Quantity Ordered
Frac. Dec. Min. Cut Pilot Hole Small Shank Low High 1 2 3 4 5-7 8-14*
   1/4   .2500  .1250  .0938    1/4  2  3/8  52208 $41.70  .2381  .2530 $70.90 $56.35 $51.45 $49.10 $46.60 $44.55
   9/32  .2813  .1250  .0938    1/4  2  3/8  52209 41.75  .2531  .2840 70.95 56.40 51.50 49.15 46.65 44.65
   5/16  .3125  .1250  .0938    1/4  2  3/8  52210 42.80  .2841  .3150 72.05 57.40 52.50 50.15 47.70 45.70
  11/32  .3438  .1250  .0938    1/4  2  3/8  52211 43.65  .3151  .3470 72.90 58.25 53.40 51.00 48.55 46.55
   3/8   .3750  .1250  .0938    1/4  2  3/8  52212 43.80  .3471  .3780 73.00 58.40 53.55 51.10 48.65 46.65
  13/32  .4063  .1560  .1250    1/4  2  3/4  52213 49.80  .3781  .4090 78.95 64.40 59.50 57.15 54.65 52.70
   7/16  .4375  .1560  .1250    1/4  2  3/4  52214 53.70  .4091  .4410 82.90 68.25 63.45 61.00 58.55 56.55
  15/32  .4688  .1560  .1250    1/4  2  3/4  52215 54.60  .4411  .4720 83.80 69.20 64.35 61.95 59.45 57.45
   1/2   .5000  .1560  .1250    1/4  2  3/4  52216 55.25  .4721  .5030 84.45 69.85 65.00 62.55 60.10 58.10
  17/32  .5313  .1560  .1250    1/4  2  3/4  52217 55.55  .5031  .5340 84.70 70.10 65.25 62.85 60.35 58.40
   9/16  .5625  .1560  .1250    1/4  2  3/4  52218 55.75  .5341  .5660 84.95 70.35 65.50 63.05 60.65 58.60
  19/32  .5938  .1560  .1250    1/4  2  3/4  52219 56.05  .5661  .5970 85.30 70.70 65.85 63.45 60.95 58.95
   5/8   .6250  .1560  .1250    1/4  2  3/4  52220 56.70  .5971  .6280 85.90 71.35 66.45 64.10 61.60 59.55
  21/32  .6563  .2190  .1875    1/4  2  3/4  52221 63.00  .6281  .6590 92.20 77.60 72.75 70.35 67.90 65.90
  11/16  .6875  .2190  .1875    1/4  2  3/4  52222 66.15  .6591  .6910 95.35 80.75 75.90 73.50 71.00 69.00
  23/32  .7188  .2190  .1875    1/4  2  3/4  52223 68.40  .6911  .7220 97.55 83.00 78.10 75.75 73.25 71.30
   3/4   .7500  .2190  .1875    1/4  2  3/4  52224 69.25  .7221  .7530 98.45 83.85 78.95 76.60 74.15 72.15
  25/32  .7813  .2190  .1875    1/4  2  3/4  52225 69.55  .7531  .7840 98.75 84.15 79.30 76.85 74.40 72.40
  13/16  .8125  .2190  .1875    1/4  2  3/4  52226 70.15  .7841  .8160 99.40 84.75 79.90 77.50 75.05 73.05
  27/32  .8438  .2190  .1875    1/4  2  3/4  52227 70.65  .8161  .8470 99.85 85.20 80.35 77.95 75.55 73.50
   7/8   .8750  .2190  .1875    1/4  2  3/4  52228 71.35  .8471  .8780 100.50 85.90 81.05 78.65 76.15 74.20
  29/32  .9063  .2190  .1875    1/4  2  3/4  52229 71.80  .8781  .9090 101.00 86.45 81.55 79.20 76.70 74.70
  15/16  .9375  .2190  .1875    1/4  2  3/4  52230 72.50  .9091  .9410 101.70 87.15 82.25 79.85 77.40 75.35
  31/32  .9688  .2190  .1875    1/4  2  3/4  52231 73.00  .9411  .9720 102.20 87.55 82.75 80.30 77.85 75.85
1         1.0000  .2190  .1875    1/4  2  3/4  52232 73.20  .9721 1.0030 102.40 87.80 82.95 80.55 78.05 76.05
1  1/16 1.0625  .2190  .1875    3/8  2  3/4  52234 93.45 1.0031 1.0660 122.60 108.00 103.15 100.75 98.25 96.30
1  1/8  1.1250  .2190  .1875    3/8  2  3/4  52236 99.70 1.0661 1.1280 128.90 114.30 109.45 107.05 104.55 102.55
1  3/16 1.1875  .2190  .1875    3/8  2  3/4  52238 100.95 1.1281 1.1905 130.15 115.60 110.70 108.30 105.85 103.85
1  1/4  1.2500  .2810  .2500    3/8  2  3/4  52240 102.85 1.1906 1.2530 132.10 117.45 112.55 110.20 107.75 105.75
1  5/16 1.3125  .2810  .2500    3/8  2  3/4  52242 104.75 1.2531 1.3155 133.95 119.35 114.50 112.10 109.60 107.60
1  3/8  1.3750  .2810  .2500    3/8  2  3/4  52244 106.00 1.3156 1.3780 135.20 120.65 115.75 113.30 110.90 108.85
1  7/16 1.4375  .2810  .2500    3/8  2  3/4  52246 107.25 1.3781 1.4405 136.45 121.85 117.00 114.60 112.15 110.15
1  1/2  1.5000  .2810  .2500    3/8  2  3/4  52248 112.90 1.4406 1.5030 143.15 128.05 123.00 120.50 117.95 115.85
1  9/16 1.5625  .3430  .3125    1/2  3  1/16 52250 125.60 1.5031 1.5660 155.85 140.75 135.70 133.20 130.65 128.60
1  5/8  1.6250  .3430  .3125    1/2  3  1/16 52252 127.25 1.5661 1.6280 157.50 142.40 137.40 134.90 132.30 130.20
1 11/16 1.6875  .3430  .3125    1/2  3  1/16 52254 128.95 1.6281 1.6910 159.20 144.05 139.00 136.55 134.00 131.90
1  3/4  1.7500  .3430  .3125    1/2  3  1/16 52256 130.90 1.6911 1.7530 161.15 146.00 141.00 138.50 135.95 133.90
1 13/16 1.8125  .3430  .3125    1/2  3  1/16 52258 132.45 1.7531 1.8160 162.45 147.35 142.30 139.80 137.20 135.15
1  7/8  1.8750  .3430  .3125    1/2  3  1/16 52260 133.45 1.8161 1.8780 163.70 148.55 143.50 141.05 138.50 136.40
1 15/16 1.9375  .3430  .3125    1/2  3  1/16 52262 147.25 1.8781 1.9410 177.50 162.35 157.30 154.80 152.25 150.20
2         2.0000  .3430  .3125    1/2  3  1/16 52264 183.20 1.9411 2.0030 213.55 198.40 193.35 190.85 188.30 186.20
* Quantities of 15 or more - price of fractional size in same size range

The specifications of the Aircraft Counterbores listed above are only the dimensions that are critical to the application. Please choose the Counterbores that meet your specific needs.

Everyone at Hannibal would like to THANK YOU for the privilege of servicing your Aircraft Counterbores needs.