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 $56.90  .2381  .2530 $96.75 $76.95 $70.20 $67.05 $63.65 $60.85
   9/32  .2813    1/  .0938    1/  3/ 252209 57.00  .2531  .2840 96.85 77.00 70.30 67.10 63.70 60.95
   5/16  .3125    1/  .0938    1/  3/ 252210 58.50  .2841  .3150 98.40 78.35 71.70 68.40 65.10 62.40
  11/32  .3438    1/  .0938    1/  3/ 252211 59.65  .3151  .3470 99.55 79.50 72.90 69.65 66.30 63.60
   3/  .3750    1/  .0938    1/  3/ 252212 59.80  .3471  .3780 99.65 79.70 73.15 69.80 66.40 63.70
  13/32  .4063  .1560  .1250    1/  3/ 252213 68.00  .3781  .4090 107.75 88.00 81.25 78.05 74.60 71.95
   7/16  .4375  .1560  .1250    1/  3/ 252214 73.30  .4091  .4410 113.15 93.20 86.60 83.25 80.00 77.20
  15/32  .4688  .1560  .1250    1/  3/ 252215 74.50  .4411  .4720 114.40 94.45 87.80 84.60 81.20 78.45
   1/  .5000  .1560  .1250    1/  3/ 252216 75.45  .4721  .5030 115.35 95.40 88.70 85.40 82.05 79.30
  17/32  .5313  .1560  .1250    1/  3/ 252217 75.85  .5031  .5340 115.65 95.70 89.10 85.80 82.40 79.70
   9/16  .5625  .1560  .1250    1/  3/ 252218 76.15  .5341  .5660 116.00 96.10 89.40 86.10 82.85 80.05
  19/32  .5938  .1560  .1250    1/  3/ 252219 76.55  .5661  .5970 116.50 96.55 89.95 86.60 83.20 80.45
   5/  .6250  .1560  .1250    1/  3/ 252220 77.40  .5971  .6280 117.25 97.40 90.70 87.50 84.10 81.30
  21/32  .6563  .2190  .1875    1/  3/ 252221 86.00  .6281  .6590 125.85 105.90 99.35 96.10 92.70 90.00
  11/16  .6875  .2190  .1875    1/  3/ 252222 90.35  .6591  .6910 130.20 110.30 103.60 100.35 96.90 94.25
  23/32  .7188  .2190  .1875    1/  3/ 252223 93.40  .6911  .7220 133.15 113.35 106.60 103.45 100.00 97.35
   3/  .7500  .2190  .1875    1/  3/ 252224 94.55  .7221  .7530 134.40 114.50 107.75 104.60 101.25 98.50
  25/32  .7813  .2190  .1875    1/  3/ 252225 94.95  .7531  .7840 134.85 114.90 108.25 104.90 101.60 98.85
  13/16  .8125  .2190  .1875    1/  3/ 252226 95.75  .7841  .8160 135.75 115.70 109.10 105.80 102.45 99.70
  27/32  .8438  .2190  .1875    1/  3/ 252227 96.50  .8161  .8470 136.35 116.25 109.70 106.45 103.05 100.35
   7/  .8750  .2190  .1875    1/  3/ 252228 97.40  .8471  .8780 137.20 117.25 110.70 107.40 103.95 101.30
  29/32  .9063  .2190  .1875    1/  3/ 252229 98.00  .8781  .9090 137.90 118.00 111.40 108.10 104.70 101.95
  15/16  .9375  .2190  .1875    1/  3/ 252230 98.95  .9091  .9410 138.85 118.95 112.30 109.00 105.70 102.85
  31/32  .9688  .2190  .1875    1/  3/ 252231 99.65  .9411  .9720 139.50 119.55 113.00 109.65 106.30 103.55
        1.0000  .2190  .1875    1/  3/ 252232 99.95  .9721 1.0030 139.85 119.90 113.20 109.95 106.55 103.85
 1/16 1.0625  .2190  .1875    3/  3/ 252234 127.60 1.0031 1.0660 167.40 147.45 140.90 137.55 134.15 131.45
 1/ 1.1250  .2190  .1875    3/  3/ 252236 136.10 1.0661 1.1280 175.95 156.05 149.45 146.15 142.75 140.00
 3/16 1.1875  .2190  .1875    3/  3/ 252238 137.85 1.1281 1.1905 177.70 157.80 151.15 147.90 144.50 141.80
 1/ 1.2500  .2810  .2500    3/  3/ 252240 140.40 1.1906 1.2530 180.40 160.35 153.65 150.40 147.15 144.40
 5/16 1.3125  .2810  .2500    3/  3/ 252242 143.00 1.2531 1.3155 182.85 162.90 156.35 153.05 149.60 146.90
 3/ 1.3750  .2810  .2500    3/  3/ 252244 144.65 1.3156 1.3780 184.60 164.75 158.05 154.70 151.40 148.60
 7/16 1.4375  .2810  .2500    3/  3/ 252246 146.40 1.3781 1.4405 186.35 166.35 159.75 156.45 153.10 150.35
 1/ 1.5000  .2810  .2500    3/  3/ 252248 154.15 1.4406 1.5030 195.45 174.80 167.90 164.50 160.95 158.20
 9/16 1.5625  .3430  .3125    1/  1/16 252250 171.45 1.5031 1.5660 212.75 192.15 185.25 181.85 178.40 175.60
 5/ 1.6250  .3430  .3125    1/  1/16 252252 173.70 1.5661 1.6280 215.05 194.40 187.60 184.15 180.65 177.75
11/16 1.6875  .3430  .3125    1/  1/16 252254 176.00 1.6281 1.6910 217.35 196.70 189.80 186.45 182.95 180.10
 3/ 1.7500  .3430  .3125    1/  1/16 252256 178.70 1.6911 1.7530 220.05 199.30 192.45 189.05 185.60 182.80
13/16 1.8125  .3430  .3125    1/  1/16 252258 180.85 1.7531 1.8160 221.80 201.20 194.30 190.90 187.30 184.50
 7/ 1.8750  .3430  .3125    1/  1/16 252260 182.15 1.8161 1.8780 223.50 202.85 195.90 192.60 189.05 186.20
15/16 1.9375  .3430  .3125    1/  1/16 252262 201.00 1.8781 1.9410 242.35 221.65 214.75 211.35 207.85 205.05
        2.0000  .3430  .3125    1/  1/16 252264 250.10 1.9411 2.0030 291.60 270.90 264.00 260.60 257.10 254.20
* 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.