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*
   1/4   .2500    1/8   .0938    1/4  2  3/8  252208 $67.30  .2381  .2530 $114.45 $91.00 $83.00 $79.25 $75.30 $72.00
   9/32  .2813    1/8   .0938    1/4  2  3/8  252209 67.40  .2531  .2840 114.55 91.05 83.15 79.35 75.35 72.10
   5/16  .3125    1/8   .0938    1/4  2  3/8  252210 69.15  .2841  .3150 116.35 92.65 84.80 80.90 77.00 73.80
  11/32  .3438    1/8   .0938    1/4  2  3/8  252211 70.50  .3151  .3470 117.70 94.00 86.25 82.35 78.40 75.20
   3/8   .3750    1/8   .0938    1/4  2  3/8  252212 70.75  .3471  .3780 117.85 94.25 86.50 82.55 78.50 75.35
  13/32  .4063  .1560  .1250    1/4  2  3/4  252213 80.40  .3781  .4090 127.45 104.05 96.05 92.30 88.25 85.10
   7/16  .4375  .1560  .1250    1/4  2  3/4  252214 86.65  .4091  .4410 133.80 110.20 102.45 98.45 94.60 91.30
  15/32  .4688  .1560  .1250    1/4  2  3/4  252215 88.15  .4411  .4720 135.25 111.65 103.85 100.05 96.00 92.75
   1/2   .5000  .1560  .1250    1/4  2  3/4  252216 89.20  .4721  .5030 136.40 112.80 104.90 101.00 97.05 93.80
  17/32  .5313  .1560  .1250    1/4  2  3/4  252217 89.70  .5031  .5340 136.80 113.20 105.35 101.45 97.45 94.25
   9/16  .5625  .1560  .1250    1/4  2  3/4  252218 90.05  .5341  .5660 137.15 113.65 105.75 101.85 97.95 94.65
  19/32  .5938  .1560  .1250    1/4  2  3/4  252219 90.50  .5661  .5970 137.75 114.15 106.40 102.45 98.40 95.15
   5/8   .6250  .1560  .1250    1/4  2  3/4  252220 91.55  .5971  .6280 138.65 115.20 107.25 103.45 99.45 96.10
  21/32  .6563  .2190  .1875    1/4  2  3/4  252221 101.70  .6281  .6590 148.80 125.25 117.50 113.65 109.60 106.45
  11/16  .6875  .2190  .1875    1/4  2  3/4  252222 106.85  .6591  .6910 153.95 130.45 122.55 118.70 114.60 111.45
  23/32  .7188  .2190  .1875    1/4  2  3/4  252223 110.45  .6911  .7220 157.45 134.05 126.10 122.35 118.25 115.15
   3/4   .7500  .2190  .1875    1/4  2  3/4  252224 111.85  .7221  .7530 158.90 135.45 127.45 123.70 119.70 116.50
  25/32  .7813  .2190  .1875    1/4  2  3/4  252225 112.25  .7531  .7840 159.45 135.85 128.05 124.05 120.15 116.90
  13/16  .8125  .2190  .1875    1/4  2  3/4  252226 113.25  .7841  .8160 160.55 136.85 129.00 125.10 121.20 117.90
  27/32  .8438  .2190  .1875    1/4  2  3/4  252227 114.10  .8161  .8470 161.25 137.50 129.70 125.85 121.90 118.70
   7/8   .8750  .2190  .1875    1/4  2  3/4  252228 115.20  .8471  .8780 162.25 138.65 130.90 127.00 122.95 119.75
  29/32  .9063  .2190  .1875    1/4  2  3/4  252229 115.90  .8781  .9090 163.10 139.55 131.75 127.80 123.80 120.60
  15/16  .9375  .2190  .1875    1/4  2  3/4  252230 117.00  .9091  .9410 164.20 140.65 132.80 128.90 125.00 121.60
  31/32  .9688  .2190  .1875    1/4  2  3/4  252231 117.85  .9411  .9720 164.95 141.35 133.65 129.65 125.70 122.45
1         1.0000  .2190  .1875    1/4  2  3/4  252232 118.20  .9721 1.0030 165.40 141.80 133.85 130.05 126.00 122.80
1  1/16 1.0625  .2190  .1875    3/8  2  3/4  252234 150.90 1.0031 1.0660 197.95 174.35 166.65 162.65 158.65 155.45
1  1/8  1.1250  .2190  .1875    3/8  2  3/4  252236 160.95 1.0661 1.1280 208.05 184.50 176.75 172.85 168.80 165.55
1  3/16 1.1875  .2190  .1875    3/8  2  3/4  252238 163.05 1.1281 1.1905 210.15 186.60 178.75 174.90 170.90 167.65
1  1/4  1.2500  .2810  .2500    3/8  2  3/4  252240 166.05 1.1906 1.2530 213.35 189.65 181.70 177.90 174.05 170.75
1  5/16 1.3125  .2810  .2500    3/8  2  3/4  252242 169.15 1.2531 1.3155 216.20 192.65 184.90 181.00 176.90 173.70
1  3/8  1.3750  .2810  .2500    3/8  2  3/4  252244 171.05 1.3156 1.3780 218.30 194.85 186.90 182.95 179.05 175.70
1  7/16 1.4375  .2810  .2500    3/8  2  3/4  252246 173.10 1.3781 1.4405 220.35 196.70 188.95 185.00 181.05 177.80
1  1/2  1.5000  .2810  .2500    3/8  2  3/4  252248 182.30 1.4406 1.5030 231.10 206.70 198.55 194.55 190.35 187.10
1  9/16 1.5625  .3430  .3125    1/2  3  1/16 252250 202.75 1.5031 1.5660 251.60 227.25 219.10 215.10 211.00 207.70
1  5/8  1.6250  .3430  .3125    1/2  3  1/16 252252 205.40 1.5661 1.6280 254.35 229.90 221.85 217.80 213.60 210.20
1 11/16 1.6875  .3430  .3125    1/2  3  1/16 252254 208.10 1.6281 1.6910 257.05 232.65 224.50 220.50 216.40 213.00
1  3/4  1.7500  .3430  .3125    1/2  3  1/16 252256 211.35 1.6911 1.7530 260.25 235.70 227.60 223.55 219.50 216.15
1 13/16 1.8125  .3430  .3125    1/2  3  1/16 252258 213.90 1.7531 1.8160 262.30 237.90 229.75 225.75 221.50 218.20
1  7/8  1.8750  .3430  .3125    1/2  3  1/16 252260 215.40 1.8161 1.8780 264.35 239.85 231.65 227.75 223.55 220.20
1 15/16 1.9375  .3430  .3125    1/2  3  1/16 252262 237.70 1.8781 1.9410 286.60 262.10 253.95 249.95 245.80 242.50
2         2.0000  .3430  .3125    1/2  3  1/16 252264 295.75 1.9411 2.0030 344.85 320.40 312.25 308.20 304.00 300.60
* 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.