COUNTERBORES — CARBIDE TIPPED

REDUCED SHANK — INTERCHANGEABLE PILOT TYPE

TYPE 2522 — THREE FLUTES — REDUCED SHANK

3 flutes
Furnished with 1/64" corner radius
Carbide tips brazed to tough alloy steel body
Tool diameter tolerance: plus .001", minus .000"
Shank diameter tolerance: plus .0000", minus .0005"

USE:

For counterboring and spotfacing non-ferrous materials, composites, and non-metals used in airframe manufacturing.

OPTIONS

Modified tool diameter - priced below
Metric tool diameter
Cutting diameter reduced for step
Corner chamfer or corner radius


Below are the critical dimensions of our Three Flutes - Reduced Shank Counterbores. Please choose the Counterbores that meets your tooling needs.
Tool
Diameter
Dimensions Type 2522
EDP NO.
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/  .2500    1/  .0938    1/  3/ 252208 $49.50  .2381  .2530 $84.15 $66.90 $61.05 $58.30 $55.35 $52.90
   9/32  .2813    1/  .0938    1/  3/ 252209 49.55  .2531  .2840 84.20 66.95 61.15 58.35 55.40 53.00
   5/16  .3125    1/  .0938    1/  3/ 252210 50.85  .2841  .3150 85.55 68.15 62.35 59.50 56.60 54.25
  11/32  .3438    1/  .0938    1/  3/ 252211 51.85  .3151  .3470 86.55 69.15 63.40 60.55 57.65 55.30
   3/  .3750    1/  .0938    1/  3/ 252212 52.00  .3471  .3780 86.65 69.30 63.60 60.70 57.75 55.40
  13/32  .4063  .1560  .1250    1/  3/ 252213 59.15  .3781  .4090 93.70 76.50 70.65 67.85 64.85 62.55
   7/16  .4375  .1560  .1250    1/  3/ 252214 63.75  .4091  .4410 98.40 81.05 75.30 72.40 69.55 67.15
  15/32  .4688  .1560  .1250    1/  3/ 252215 64.80  .4411  .4720 99.50 82.15 76.35 73.55 70.60 68.20
   1/  .5000  .1560  .1250    1/  3/ 252216 65.60  .4721  .5030 100.30 82.95 77.15 74.25 71.35 68.95
  17/32  .5313  .1560  .1250    1/  3/ 252217 65.95  .5031  .5340 100.55 83.20 77.50 74.60 71.65 69.30
   9/16  .5625  .1560  .1250    1/  3/ 252218 66.20  .5341  .5660 100.85 83.55 77.75 74.85 72.05 69.60
  19/32  .5938  .1560  .1250    1/  3/ 252219 66.55  .5661  .5970 101.30 83.95 78.20 75.30 72.35 69.95
   5/  .6250  .1560  .1250    1/  3/ 252220 67.30  .5971  .6280 101.95 84.70 78.85 76.10 73.15 70.70
  21/32  .6563  .2190  .1875    1/  3/ 252221 74.80  .6281  .6590 109.45 92.10 86.40 83.55 80.60 78.25
  11/16  .6875  .2190  .1875    1/  3/ 252222 78.55  .6591  .6910 113.20 95.90 90.10 87.25 84.25 81.95
  23/32  .7188  .2190  .1875    1/  3/ 252223 81.20  .6911  .7220 115.80 98.55 92.70 89.95 86.95 84.65
   3/  .7500  .2190  .1875    1/  3/ 252224 82.20  .7221  .7530 116.85 99.55 93.70 90.95 88.05 85.65
  25/32  .7813  .2190  .1875    1/  3/ 252225 82.55  .7531  .7840 117.25 99.90 94.15 91.20 88.35 85.95
  13/16  .8125  .2190  .1875    1/  3/ 252226 83.25  .7841  .8160 118.05 100.60 94.85 92.00 89.10 86.70
  27/32  .8438  .2190  .1875    1/  3/ 252227 83.90  .8161  .8470 118.55 101.10 95.40 92.55 89.60 87.25
   7/  .8750  .2190  .1875    1/  3/ 252228 84.70  .8471  .8780 119.30 101.95 96.25 93.40 90.40 88.10
  29/32  .9063  .2190  .1875    1/  3/ 252229 85.20  .8781  .9090 119.90 102.60 96.85 94.00 91.05 88.65
  15/16  .9375  .2190  .1875    1/  3/ 252230 86.05  .9091  .9410 120.75 103.45 97.65 94.80 91.90 89.45
  31/32  .9688  .2190  .1875    1/  3/ 252231 86.65  .9411  .9720 121.30 103.95 98.25 95.35 92.45 90.05
        1.0000  .2190  .1875    1/  3/ 252232 86.90  .9721 1.0030 121.60 104.25 98.45 95.60 92.65 90.30
 1/16 1.0625  .2190  .1875    3/  3/ 252234 110.95 1.0031 1.0660 145.55 128.20 122.50 119.60 116.65 114.30
 1/ 1.1250  .2190  .1875    3/  3/ 252236 118.35 1.0661 1.1280 153.00 135.70 129.95 127.10 124.15 121.75
 3/16 1.1875  .2190  .1875    3/  3/ 252238 119.85 1.1281 1.1905 154.50 137.20 131.45 128.60 125.65 123.30
 1/ 1.2500  .2810  .2500    3/  3/ 252240 122.10 1.1906 1.2530 156.85 139.45 133.60 130.80 127.95 125.55
 5/16 1.3125  .2810  .2500    3/  3/ 252242 124.35 1.2531 1.3155 159.00 141.65 135.95 133.10 130.10 127.75
 3/ 1.3750  .2810  .2500    3/  3/ 252244 125.80 1.3156 1.3780 160.50 143.25 137.45 134.50 131.65 129.20
 7/16 1.4375  .2810  .2500    3/  3/ 252246 127.30 1.3781 1.4405 162.05 144.65 138.90 136.05 133.15 130.75
 1/ 1.5000  .2810  .2500    3/  3/ 252248 134.05 1.4406 1.5030 169.95 152.00 146.00 143.05 139.95 137.55
 9/16 1.5625  .3430  .3125    1/  1/16 252250 149.10 1.5031 1.5660 185.00 167.10 161.10 158.15 155.15 152.70
 5/ 1.6250  .3430  .3125    1/  1/16 252252 151.05 1.5661 1.6280 187.00 169.05 163.15 160.15 157.10 154.55
11/16 1.6875  .3430  .3125    1/  1/16 252254 153.05 1.6281 1.6910 189.00 171.05 165.05 162.15 159.10 156.60
 3/ 1.7500  .3430  .3125    1/  1/16 252256 155.40 1.6911 1.7530 191.35 173.30 167.35 164.40 161.40 158.95
13/16 1.8125  .3430  .3125    1/  1/16 252258 157.25 1.7531 1.8160 192.85 174.95 168.95 166.00 162.85 160.45
 7/ 1.8750  .3430  .3125    1/  1/16 252260 158.40 1.8161 1.8780 194.35 176.40 170.35 167.50 164.40 161.90
15/16 1.9375  .3430  .3125    1/  1/16 252262 174.80 1.8781 1.9410 210.75 192.75 186.75 183.80 180.75 178.30
        2.0000  .3430  .3125    1/  1/16 252264 217.50 1.9411 2.0030 253.55 235.55 229.55 226.60 223.55 221.05
* Quantities of 15 or more - price of fractional size in same size range
Don't see the Three Flutes - Reduced Shank Counterbores you need?
If the above dimensions do not meet your specific Three Flutes - Reduced Shank Counterbores needs we may be able to make modifications to one of the above Three Flutes - Reduced Shank Counterbores or we can quote a full special to your exact requirements. Simply click here to view and print our special tool quote form. Fill it out and fax (800-867-9312) it back to Rock River Tool. We will let you know how we will provide the Three Flutes - Reduced Shank Counterbores you requested.
Thank you for using Rock River Tool for your Three Flutes - Reduced Shank Counterbores needs.