COUNTERBORES — CARBIDE TIPPED

THREE/FOUR FLUTES — STRAIGHT SHANK

TYPE 2514 — THREE/FOUR FLUTES — STRAIGHT SHANK

For machining cast iron, non ferrous materials, composites, plastics and non-metals.
Right spiral polished flutes.
Carbide tips brazed to hardened alloy steel bodies.
Cutting diameter tolerance — plus .001", minus .000".
Shank diameter tolerance — plus .0000", minus .0005".

OPTIONS

Intermediate decimal or metric diameters.
Short shank or undersize diameter or flat on shank. Chamfers or radius end.
Cutting diameter ground down for small step. Tanged shanks.


Below are the critical dimensions of our Three/four Flutes - Straight Shank Counterbores. Please choose the Counterbores that meets your tooling needs.
Tool
Diameter
Dimensions Type 2514
EDP NO.
Price Finished To Modified Tool Diameter
Diameter No. of Flutes Overall Length Modified Diameter Range Price Each - Based on Quantity Ordered
Frac. Dec. Min. Cut Pilot Hole Shank Low High 1 2 3 4 5-7 8-14*
   1/  .2500  .1140  .0938   15/64 3 13/16 251408 $57.90  .2381  .2530 $90.55 $74.25 $68.80 $66.10 $63.30 $61.10
   9/32  .2813  .1140  .0938   17/64 3 13/16 251409 70.75  .2531  .2840 103.35 87.10 81.65 78.95 76.25 73.95
   5/16  .3125  .1140  .0938   19/64 3 13/16 251410 64.30  .2841  .3150 96.95 80.65 75.20 72.50 69.75 67.50
  11/32  .3438  .1140  .0938    5/16 3 13/16 251411 81.40  .3151  .3470 114.00 97.65 92.20 89.55 86.80 84.50
   3/  .3750  .1820  .1563    5/16 3  1/16 251412 68.15  .3471  .3780 98.30 83.25 78.20 75.75 73.20 71.15
  13/32  .4063  .1820  .1563    3/ 3  1/16 251413 76.90  .3781  .4090 107.00 92.00 86.95 84.45 81.90 79.85
   7/16  .4375  .1820  .1563    3/ 3  1/16 251414 69.95  .4091  .4410 100.05 85.00 79.95 77.55 74.95 72.90
  15/32  .4688  .2280  .1875    7/16 3  5/16 251415 85.40  .4411  .4720 115.50 100.45 95.45 93.00 90.40 88.35
   1/  .5000  .2280  .1875    7/16 3  5/16 251416 77.65  .4721  .5030 107.75 92.65 87.70 85.20 82.65 80.60
  17/32  .5313  .2280  .1875    1/ 3  5/16 251417 87.90  .5031  .5340 117.95 102.95 97.95 95.45 92.90 90.80
   9/16  .5625  .2280  .1875    1/ 3  5/16 251418 79.90  .5341  .5660 110.05 94.95 89.95 87.45 84.95 82.85
  19/32  .5938  .2280  .1875    1/ 3  1/ 251419 88.80  .5661  .5970 118.85 103.85 98.85 96.35 93.75 91.70
   5/  .6250  .2280  .1875    1/ 3  1/ 251420 80.70  .5971  .6280 110.80 95.70 90.70 88.25 85.70 83.65
  21/32  .6563  .2280  .1875    1/ 3  1/ 251421 94.00  .6281  .6590 124.05 109.05 104.00 101.50 99.00 96.95
  11/16  .6875  .2280  .1875    1/ 3  1/ 251422 85.45  .6591  .6910 115.60 100.50 95.50 93.05 90.50 88.40
  23/32  .7188  .2900  .2500    1/ 3  3/ 251423 96.25  .6911  .7220 126.25 111.25 106.25 103.80 101.20 99.15
   3/  .7500  .2900  .2500    1/ 3  3/ 251424 87.40  .7221  .7530 117.55 102.45 97.45 94.95 92.45 90.35
  25/32  .7813  .2900  .2500    5/ 3  3/ 251425 98.25  .7531  .7840 128.30 113.25 108.25 105.80 103.20 101.15
  13/16  .8125  .2900  .2500    5/ 3  3/ 251426 89.25  .7841  .8160 119.35 104.25 99.30 96.75 94.30 92.20
  27/32  .8438  .2900  .2500    3/ 3  3/ 251427 104.05  .8161  .8470 134.15 119.05 114.10 111.60 109.10 107.00
   7/  .8750  .2900  .2500    3/ 3  3/ 251428 94.60  .8471  .8780 124.70 109.65 104.65 102.15 99.60 97.55
  29/32  .9063  .2900  .2500    3/ 3  1/ 251429 106.15  .8781  .9090 136.30 121.20 116.20 113.75 111.20 109.15
  15/16  .9375  .2900  .2500    3/ 3  1/ 251430 96.55  .9091  .9410 126.70 111.60 106.60 104.10 101.55 99.50
  31/32  .9688  .3530  .3125    3/ 3  3/ 251431 109.25  .9411  .9720 139.35 124.25 119.30 116.80 114.25 112.20
        1.0000  .3530  .3125    3/ 3  3/ 251432 99.35  .9721 1.0030 129.45 114.35 109.35 106.90 104.35 102.25
 1/16 1.0625  .3530  .3125    3/ 3  3/ 251434 100.40 1.0031 1.0660 130.50 115.40 110.40 107.95 105.40 103.30
 1/ 1.1250  .3530  .3125         3  3/ 251436 102.95 1.0661 1.1280 133.00 117.95 113.00 110.45 107.95 105.90
 3/16 1.1875  .3530  .3125         3  3/ 251438 107.50 1.1281 1.1905 137.60 122.60 117.60 115.10 112.50 110.45
 1/ 1.2500  .4260  .3750         4  5/ 251440 119.75 1.1906 1.2530 152.35 136.10 130.60 127.95 125.15 122.95
 5/16 1.3125  .4260  .3750         4  5/ 251442 129.25 1.2531 1.3155 161.95 145.60 140.10 137.45 134.70 132.45
 3/ 1.3750  .4260  .3750         4  5/ 251444 136.00 1.3156 1.3780 168.60 152.25 146.80 144.10 141.35 139.10
 7/16 1.4375  .4260  .3750  1/ 4  7/ 251446 149.05 1.3781 1.4405 184.50 166.75 160.80 157.90 154.95 152.45
 1/ 1.5000  .4260  .3750  1/ 4  7/ 251448 166.05 1.4406 1.5030 201.50 183.75 177.85 175.00 171.95 169.50
 9/16 1.5625  .4890  .4375  1/ 4  1/ 251450 170.90 1.5031 1.5660 206.45 188.65 182.75 179.80 176.85 174.40
 5/ 1.6250  .4890  .4375  1/ 4  1/ 251452 174.50 1.5661 1.6280 210.00 192.25 186.40 183.45 180.45 178.05
11/16 1.6875  .4890  .4375  1/ 4  1/ 251454 208.80 1.6281 1.6910 247.05 227.95 221.55 218.35 215.15 212.50
 3/ 1.7500  .4890  .4375  1/ 4  1/ 251456 208.80 1.6911 1.7530 247.05 227.95 221.55 218.35 215.15 212.50
13/16 1.8125  .4890  .4375  1/ 4  1/ 251458 247.20 1.7531 1.8160 285.50 266.35 259.95 256.80 253.50 250.95
 7/ 1.8750  .4890  .4375  1/ 4  1/ 251460 247.20 1.8161 1.8780 285.50 266.35 259.95 256.80 253.50 250.95
15/16 1.9375  .4890  .4375  1/ 4  1/ 251462 270.15 1.8781 1.9410 308.50 289.35 282.90 279.75 276.50 273.90
        2.0000  .5510  .5000  1/ 4  3/ 251464 270.15 1.9411 2.0030 308.50 289.35 282.90 279.75 276.50 273.90
* Quantities of 15 or more - price of fractional size in same size range
Don't see the Three/four Flutes - Straight Shank Counterbores you need?
If the above dimensions do not meet your specific Three/four Flutes - Straight Shank Counterbores needs we may be able to make modifications to one of the above Three/four Flutes - Straight 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/four Flutes - Straight Shank Counterbores you requested.
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