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 $83.45  .2381  .2530 $130.55 $107.05 $99.20 $95.25 $91.25 $88.00
   9/32  .2813  .1140  .0938   17/64 3 13/16 251409 102.00  .2531  .2840 149.00 125.60 117.70 113.85 109.90 106.60
   5/16  .3125  .1140  .0938   19/64 3 13/16 251410 87.05  .2841  .3150 131.20 109.20 101.85 98.15 94.45 91.35
  11/32  .3438  .1140  .0938    5/16 3 13/16 251411 110.20  .3151  .3470 154.35 132.20 124.85 121.25 117.50 114.35
   3/  .3750  .1820  .1563    5/16 3  1/16 251412 92.30  .3471  .3780 133.10 112.70 105.90 102.55 99.10 96.35
  13/32  .4063  .1820  .1563    3/ 3  1/16 251413 104.05  .3781  .4090 144.85 124.50 117.65 114.30 110.85 108.10
   7/16  .4375  .1820  .1563    3/ 3  1/16 251414 94.70  .4091  .4410 135.50 115.05 108.25 105.05 101.45 98.70
  15/32  .4688  .2280  .1875    7/16 3  5/16 251415 115.60  .4411  .4720 156.40 135.95 129.30 125.95 122.35 119.60
   1/  .5000  .2280  .1875    7/16 3  5/16 251416 105.15  .4721  .5030 145.85 125.40 118.75 115.30 111.90 109.15
  17/32  .5313  .2280  .1875    1/ 3  5/16 251417 118.95  .5031  .5340 159.75 139.45 132.60 129.30 125.75 122.95
   9/16  .5625  .2280  .1875    1/ 3  5/16 251418 108.20  .5341  .5660 149.00 128.55 121.80 118.35 115.00 112.10
  19/32  .5938  .2280  .1875    1/ 3  1/ 251419 120.25  .5661  .5970 160.95 140.60 133.85 130.45 126.95 124.20
   5/  .6250  .2280  .1875    1/ 3  1/ 251420 109.30  .5971  .6280 150.00 129.55 122.80 119.50 116.00 113.25
  21/32  .6563  .2280  .1875    1/ 3  1/ 251421 127.20  .6281  .6590 167.95 147.65 140.80 137.45 134.05 131.20
  11/16  .6875  .2280  .1875    1/ 3  1/ 251422 115.70  .6591  .6910 156.50 136.10 129.35 126.00 122.60 119.65
  23/32  .7188  .2900  .2500    1/ 3  3/ 251423 130.25  .6911  .7220 170.90 150.60 143.80 140.55 137.00 134.25
   3/  .7500  .2900  .2500    1/ 3  3/ 251424 118.30  .7221  .7530 159.15 138.75 131.90 128.55 125.15 122.25
  25/32  .7813  .2900  .2500    5/ 3  3/ 251425 133.05  .7531  .7840 173.70 153.30 146.60 143.20 139.70 136.95
  13/16  .8125  .2900  .2500    5/ 3  3/ 251426 120.80  .7841  .8160 161.55 141.15 134.40 130.95 127.65 124.85
  27/32  .8438  .2900  .2500    3/ 3  3/ 251427 140.85  .8161  .8470 181.65 161.20 154.50 151.10 147.70 144.85
   7/  .8750  .2900  .2500    3/ 3  3/ 251428 128.10  .8471  .8780 168.85 148.50 141.75 138.30 134.90 132.05
  29/32  .9063  .2900  .2500    3/ 3  1/ 251429 143.70  .8781  .9090 184.50 164.10 157.30 154.00 150.55 147.75
  15/16  .9375  .2900  .2500    3/ 3  1/ 251430 130.75  .9091  .9410 171.55 151.10 144.35 140.95 137.50 134.70
  31/32  .9688  .3530  .3125    3/ 3  3/ 251431 147.90  .9411  .9720 188.60 168.20 161.45 158.10 154.70 151.90
        1.0000  .3530  .3125    3/ 3  3/ 251432 134.45  .9721 1.0030 175.30 154.80 148.00 144.65 141.25 138.40
 1/16 1.0625  .3530  .3125    3/ 3  3/ 251434 135.85 1.0031 1.0660 176.70 156.20 149.40 146.20 142.65 139.85
 1/ 1.1250  .3530  .3125         3  3/ 251436 139.45 1.0661 1.1280 180.10 159.75 153.05 149.55 146.20 143.35
 3/16 1.1875  .3530  .3125         3  3/ 251438 145.55 1.1281 1.1905 186.25 166.00 159.20 155.80 152.35 149.55
 1/ 1.2500  .4260  .3750         4  5/ 251440 162.10 1.1906 1.2530 206.25 184.25 176.85 173.25 169.40 166.55
 5/16 1.3125  .4260  .3750         4  5/ 251442 174.95 1.2531 1.3155 219.25 197.15 189.70 186.10 182.35 179.35
 3/ 1.3750  .4260  .3750         4  5/ 251444 184.15 1.3156 1.3780 228.25 206.10 198.70 195.05 191.45 188.35
 7/16 1.4375  .4260  .3750  1/ 4  7/ 251446 201.80 1.3781 1.4405 249.75 225.75 217.75 213.75 209.80 206.45
 1/ 1.5000  .4260  .3750  1/ 4  7/ 251448 233.30 1.4406 1.5030 283.10 258.10 249.85 245.85 241.60 238.15
 9/16 1.5625  .4890  .4375  1/ 4  1/ 251450 240.15 1.5031 1.5660 290.05 265.05 256.70 252.60 248.45 245.05
 5/ 1.6250  .4890  .4375  1/ 4  1/ 251452 245.15 1.5661 1.6280 295.05 270.10 261.90 257.75 253.55 250.15
11/16 1.6875  .4890  .4375  1/ 4  1/ 251454 293.40 1.6281 1.6910 347.10 320.25 311.25 306.75 302.30 298.55
 3/ 1.7500  .4890  .4375  1/ 4  1/ 251456 293.40 1.6911 1.7530 347.10 320.25 311.25 306.75 302.30 298.55
13/16 1.8125  .4890  .4375  1/ 4  1/ 251458 347.25 1.7531 1.8160 401.05 374.20 365.25 360.85 356.15 352.55
 7/ 1.8750  .4890  .4375  1/ 4  1/ 251460 347.25 1.8161 1.8780 401.05 374.20 365.25 360.85 356.15 352.55
15/16 1.9375  .4890  .4375  1/ 4  1/ 251462 379.50 1.8781 1.9410 433.40 406.50 397.50 392.95 388.50 384.80
        2.0000  .5510  .5000  1/ 4  3/ 251464 379.50 1.9411 2.0030 433.40 406.50 397.50 392.95 388.50 384.80
* 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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