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*
   1/4   .2500  .1140  .0938   15/64 3 3 13/16 251408 $61.35  .2381  .2530 $96.00 $78.70 $72.95 $70.05 $67.10 $64.75
   9/32  .2813  .1140  .0938   17/64 3 3 13/16 251409 75.00  .2531  .2840 109.55 92.35 86.55 83.70 80.80 78.40
   5/16  .3125  .1140  .0938   19/64 3 3 13/16 251410 68.15  .2841  .3150 102.75 85.50 79.70 76.85 73.95 71.55
  11/32  .3438  .1140  .0938    5/16 3 3 13/16 251411 86.30  .3151  .3470 120.85 103.50 97.75 94.90 92.00 89.55
   3/8   .3750  .1820  .1563    5/16 3 4  1/16 251412 72.25  .3471  .3780 104.20 88.25 82.90 80.30 77.60 75.40
  13/32  .4063  .1820  .1563    3/8  3 4  1/16 251413 81.50  .3781  .4090 113.40 97.50 92.15 89.50 86.80 84.65
   7/16  .4375  .1820  .1563    3/8  3 4  1/16 251414 74.15  .4091  .4410 106.05 90.10 84.75 82.20 79.45 77.25
  15/32  .4688  .2280  .1875    7/16 3 4  5/16 251415 90.50  .4411  .4720 122.45 106.50 101.20 98.60 95.80 93.65
   1/2   .5000  .2280  .1875    7/16 3 4  5/16 251416 82.30  .4721  .5030 114.20 98.20 92.95 90.30 87.60 85.45
  17/32  .5313  .2280  .1875    1/2  3 4  5/16 251417 93.15  .5031  .5340 125.05 109.15 103.85 101.20 98.45 96.25
   9/16  .5625  .2280  .1875    1/2  3 4  5/16 251418 84.70  .5341  .5660 116.65 100.65 95.35 92.70 90.05 87.80
  19/32  .5938  .2280  .1875    1/2  3 5  1/8  251419 94.15  .5661  .5970 126.00 110.10 104.80 102.15 99.40 97.20
   5/8   .6250  .2280  .1875    1/2  3 5  1/8  251420 85.55  .5971  .6280 117.45 101.45 96.15 93.55 90.85 88.65
  21/32  .6563  .2280  .1875    1/2  3 5  1/8  251421 99.65  .6281  .6590 131.50 115.60 110.25 107.60 104.95 102.75
  11/16  .6875  .2280  .1875    1/2  3 5  1/8  251422 90.60  .6591  .6910 122.55 106.55 101.25 98.65 95.95 93.70
  23/32  .7188  .2900  .2500    1/2  3 5  3/8  251423 102.00  .6911  .7220 133.80 117.90 112.60 110.05 107.25 105.10
   3/4   .7500  .2900  .2500    1/2  3 5  3/8  251424 92.65  .7221  .7530 124.60 108.60 103.30 100.65 98.00 95.75
  25/32  .7813  .2900  .2500    5/8  3 5  3/8  251425 104.15  .7531  .7840 136.00 120.05 114.75 112.15 109.40 107.20
  13/16  .8125  .2900  .2500    5/8  3 5  3/8  251426 94.60  .7841  .8160 126.50 110.50 105.25 102.55 99.95 97.75
  27/32  .8438  .2900  .2500    3/4  3 5  3/8  251427 110.30  .8161  .8470 142.20 126.20 120.95 118.30 115.65 113.40
   7/8   .8750  .2900  .2500    3/4  3 5  3/8  251428 100.30  .8471  .8780 132.20 116.25 110.95 108.30 105.60 103.40
  29/32  .9063  .2900  .2500    3/4  3 6  1/8  251429 112.50  .8781  .9090 144.50 128.45 123.15 120.60 117.85 115.70
  15/16  .9375  .2900  .2500    3/4  3 6  1/8  251430 102.35  .9091  .9410 134.30 118.30 113.00 110.35 107.65 105.45
  31/32  .9688  .3530  .3125    3/4  3 6  3/8  251431 115.80  .9411  .9720 147.70 131.70 126.45 123.80 121.10 118.95
1         1.0000  .3530  .3125    3/4  3 6  3/8  251432 105.30  .9721 1.0030 137.20 121.20 115.90 113.30 110.60 108.40
1  1/16 1.0625  .3530  .3125    3/4  3 6  3/8  251434 106.40 1.0031 1.0660 138.35 122.30 117.00 114.45 111.70 109.50
1  1/8  1.1250  .3530  .3125 1         3 6  3/8  251436 109.15 1.0661 1.1280 141.00 125.05 119.80 117.10 114.45 112.25
1  3/16 1.1875  .3530  .3125 1         3 6  3/8  251438 113.95 1.1281 1.1905 145.85 129.95 124.65 122.00 119.25 117.10
1  1/4  1.2500  .4260  .3750 1         4 6  5/8  251440 126.95 1.1906 1.2530 161.50 144.25 138.45 135.65 132.65 130.35
1  5/16 1.3125  .4260  .3750 1         4 6  5/8  251442 137.00 1.2531 1.3155 171.65 154.35 148.50 145.70 142.80 140.40
1  3/8  1.3750  .4260  .3750 1         4 6  5/8  251444 144.15 1.3156 1.3780 178.70 161.40 155.60 152.75 149.85 147.45
1  7/16 1.4375  .4260  .3750 1  1/4  4 7  7/8  251446 158.00 1.3781 1.4405 195.55 176.75 170.45 167.35 164.25 161.60
1  1/2  1.5000  .4260  .3750 1  1/4  4 7  7/8  251448 182.65 1.4406 1.5030 221.65 202.10 195.65 192.50 189.15 186.45
1  9/16 1.5625  .4890  .4375 1  1/4  4 8  1/8  251450 188.00 1.5031 1.5660 227.10 207.50 201.00 197.80 194.55 191.85
1  5/8  1.6250  .4890  .4375 1  1/4  4 8  1/8  251452 191.95 1.5661 1.6280 231.00 211.50 205.05 201.80 198.50 195.85
1 11/16 1.6875  .4890  .4375 1  1/4  4 8  1/8  251454 229.70 1.6281 1.6910 271.75 250.75 243.70 240.20 236.65 233.75
1  3/4  1.7500  .4890  .4375 1  1/4  4 8  1/8  251456 229.70 1.6911 1.7530 271.75 250.75 243.70 240.20 236.65 233.75
1 13/16 1.8125  .4890  .4375 1  1/2  4 8  1/8  251458 271.90 1.7531 1.8160 314.05 293.00 285.95 282.50 278.85 276.05
1  7/8  1.8750  .4890  .4375 1  1/2  4 8  1/8  251460 271.90 1.8161 1.8780 314.05 293.00 285.95 282.50 278.85 276.05
1 15/16 1.9375  .4890  .4375 1  1/2  4 8  1/8  251462 297.15 1.8781 1.9410 339.35 318.30 311.20 307.70 304.15 301.30
2         2.0000  .5510  .5000 1  1/2  4 8  3/8  251464 297.15 1.9411 2.0030 339.35 318.30 311.20 307.70 304.15 301.30
* 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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