COUNTERBORES — CARBIDE TIPPED

THREE/FOUR FLUTES — TAPER SHANK

TYPE 2516 — THREE/FOUR FLUTES — TAPER SHANK

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

OPTIONS

Intermediate decimal or metric diameters.
Chamfers or radius end.
Cutting diameter ground down for small step.


Below are the critical dimensions of our Three/four Flutes - Taper Shank Counterbores. Please choose the Counterbores that meets your tooling needs.
Tool
Diameter
Dimensions Type 2516
EDP NO.
Price Finished To Modified Tool Diameter
Diameter Taper No. of Flutes Overall Length Modified Diameter Range Price Each - Based on Quantity Ordered
Frac. Dec. Min. Cut Pilot Hole Low High 1 2 3 4 5-7 8-14*
   1/  .2500  .1140  .0938 1 3 13/16 251608 $67.70  .2381  .2530 $100.35 $84.05 $78.60 $75.90 $73.15 $70.90
   9/32  .2813  .1140  .0938 1 3 13/16 251609 81.45  .2531  .2840 114.05 97.70 92.25 89.60 86.90 84.60
   5/16  .3125  .1140  .0938 1 3 13/16 251610 74.10  .2841  .3150 106.70 90.35 84.95 82.25 79.50 77.25
  11/32  .3438  .1140  .0938 1 3 13/16 251611 91.25  .3151  .3470 123.90 107.55 102.10 99.45 96.70 94.45
   3/  .3750  .1820  .1563 1 3  1/16 251612 76.45  .3471  .3780 106.50 91.50 86.45 84.00 81.50 79.45
  13/32  .4063  .1820  .1563 1 3  1/16 251613 86.35  .3781  .4090 116.45 101.40 96.40 93.90 91.40 89.30
   7/16  .4375  .1820  .1563 1 3  1/16 251614 78.55  .4091  .4410 108.55 93.55 88.50 86.10 83.55 81.50
  15/32  .4688  .2280  .1875 1 3  5/16 251615 95.35  .4411  .4720 125.40 110.35 105.35 102.90 100.35 98.30
   1/  .5000  .2280  .1875 1 3  5/16 251616 86.70  .4721  .5030 116.80 101.75 96.70 94.30 91.70 89.65
  17/32  .5313  .2280  .1875 1 3  5/16 251617 97.10  .5031  .5340 127.15 112.15 107.10 104.65 102.10 100.05
   9/16  .5625  .2280  .1875 1 3  5/16 251618 88.30  .5341  .5660 118.40 103.30 98.35 95.80 93.35 91.25
  19/32  .5938  .2280  .1875 2 3  1/ 251619 99.75  .5661  .5970 129.85 114.80 109.80 107.30 104.80 102.70
   5/  .6250  .2280  .1875 2 3  1/ 251620 90.65  .5971  .6280 120.75 105.75 100.70 98.25 95.65 93.60
  21/32  .6563  .2280  .1875 2 3  1/ 251621 105.30  .6281  .6590 135.40 120.35 115.30 112.90 110.30 108.25
  11/16  .6875  .2280  .1875 2 3  1/ 251622 95.65  .6591  .6910 125.80 110.70 105.75 103.20 100.70 98.60
  23/32  .7188  .2900  .2500 2 3  3/ 251623 107.05  .6911  .7220 137.15 122.10 117.10 114.65 112.10 110.05
   3/  .7500  .2900  .2500 2 3  3/ 251624 97.30  .7221  .7530 127.35 112.30 107.30 104.85 102.25 100.20
  25/32  .7813  .2900  .2500 2 3  3/ 251625 108.85  .7531  .7840 138.90 123.90 118.85 116.35 113.85 111.80
  13/16  .8125  .2900  .2500 2 3  3/ 251626 99.00  .7841  .8160 129.05 114.05 109.05 106.50 104.00 101.95
  27/32  .8438  .2900  .2500 2 3  3/ 251627 114.45  .8161  .8470 144.60 129.55 124.55 122.05 119.55 117.45
   7/  .8750  .2900  .2500 2 3  3/ 251628 104.05  .8471  .8780 134.15 119.05 114.10 111.60 109.10 107.00
  29/32  .9063  .2900  .2500 3 3  1/ 251629 117.60  .8781  .9090 147.65 132.60 127.65 125.10 122.60 120.55
  15/16  .9375  .2900  .2500 3 3  1/ 251630 106.90  .9091  .9410 136.95 121.90 116.90 114.40 111.95 109.85
  31/32  .9688  .3530  .3125 3 3  3/ 251631 120.30  .9411  .9720 150.35 135.35 130.35 127.85 125.25 123.20
        1.0000  .3530  .3125 3 3  3/ 251632 113.50  .9721 1.0030 144.75 129.15 123.90 121.35 118.65 116.55
 1/16 1.0625  .3530  .3125 3 3  3/ 251634 115.00 1.0031 1.0660 146.15 130.55 125.35 122.80 120.15 118.00
 1/ 1.1250  .3530  .3125 3 3  3/ 251636 118.60 1.0661 1.1280 149.85 134.30 129.00 126.45 123.80 121.70
 3/16 1.1875  .3530  .3125 3 3  3/ 251638 122.65 1.1281 1.1905 153.95 138.30 133.05 130.50 127.85 125.75
 1/ 1.2500  .4260  .3750 3 4  5/ 251640 136.35 1.1906 1.2530 170.20 153.25 147.65 144.85 142.00 139.65
 5/16 1.3125  .4260  .3750 3 4  5/ 251642 146.15 1.2531 1.3155 180.10 163.05 157.50 154.65 151.85 149.50
 3/ 1.3750  .4260  .3750 3 4  5/ 251644 153.15 1.3156 1.3780 187.00 170.10 164.45 161.65 158.80 156.45
 7/16 1.4375  .4260  .3750 4 4  7/ 251646 170.35 1.3781 1.4405 207.20 188.80 182.60 179.60 176.50 173.95
 1/ 1.5000  .4260  .3750 4 4  7/ 251648 188.90 1.4406 1.5030 225.75 207.30 201.20 198.15 195.10 192.50
 9/16 1.5625  .4890  .4375 4 4  1/ 251650 202.95 1.5031 1.5660 241.50 222.25 215.90 212.65 209.40 206.80
 5/ 1.6250  .4890  .4375 4 4  1/ 251652 206.60 1.5661 1.6280 245.15 225.90 219.50 216.25 213.00 210.45
11/16 1.6875  .4890  .4375 4 4  1/ 251654 247.20 1.6281 1.6910 288.85 268.05 261.15 257.70 254.15 251.30
 3/ 1.7500  .4890  .4375 4 4  1/ 251656 247.20 1.6911 1.7530 288.85 268.05 261.15 257.70 254.15 251.30
13/16 1.8125  .4890  .4375 4 4  1/ 251658 292.60 1.7531 1.8160 334.20 313.40 306.45 303.00 299.50 296.60
 7/ 1.8750  .4890  .4375 4 4  1/ 251660 292.60 1.8161 1.8780 334.20 313.40 306.45 303.00 299.50 296.60
15/16 1.9375  .4890  .4375 4 4  1/ 251662 319.65 1.8781 1.9410 361.30 340.50 333.50 330.15 326.65 323.75
        2.0000  .5510  .5000 4 4  3/ 251664 319.65 1.9411 2.0030 361.30 340.50 333.50 330.15 326.65 323.75
* Quantities of 15 or more - price of fractional size in same size range
Don't see the Three/four Flutes - Taper Shank Counterbores you need?
If the above dimensions do not meet your specific Three/four Flutes - Taper Shank Counterbores needs we may be able to make modifications to one of the above Three/four Flutes - Taper 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 - Taper Shank Counterbores you requested.
Thank you for using Rock River Tool for your Three/four Flutes - Taper Shank Counterbores needs.