COUNTERBORES — CARBIDE TIPPED

FOUR FLUTES — TAPER SHANK

TYPE 2518 — 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 Four Flutes - Taper Shank Counterbores. Please choose the Counterbores that meets your tooling needs.
Tool
Diameter		 Dimensions Type 2518
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*
   1/2   .5000  .2280  .1875 1 4 4  5/16 251816 $95.35  .4721  .5030 $128.50 $111.90 $106.35 $103.75 $100.85 $98.60
  17/32  .5313  .2280  .1875 1 4 4  5/16 251817 106.80  .5031  .5340 139.85 123.35 117.80 115.10 112.30 110.05
   9/16  .5625  .2280  .1875 1 4 4  5/16 251818 97.15  .5341  .5660 130.25 113.65 108.20 105.40 102.70 100.40
  19/32  .5938  .2280  .1875 2 4 5  1/8  251819 109.70  .5661  .5970 142.85 126.30 120.80 118.05 115.30 112.95
   5/8   .6250  .2280  .1875 2 4 5  1/8  251820 99.70  .5971  .6280 132.80 116.30 110.75 108.10 105.20 102.95
  21/32  .6563  .2280  .1875 2 4 5  1/8  251821 115.85  .6281  .6590 148.95 132.40 126.85 124.20 121.35 119.10
  11/16  .6875  .2280  .1875 2 4 5  1/8  251822 105.20  .6591  .6910 138.40 121.75 116.30 113.50 110.75 108.45
  23/32  .7188  .2900  .2500 2 4 5  3/8  251823 117.75  .6911  .7220 150.85 134.30 128.80 126.10 123.30 121.05
   3/4   .7500  .2900  .2500 2 4 5  3/8  251824 107.05  .7221  .7530 140.10 123.55 118.05 115.35 112.50 110.20
  25/32  .7813  .2900  .2500 2 4 5  3/8  251825 119.75  .7531  .7840 152.80 136.30 130.75 128.00 125.25 123.00
  13/16  .8125  .2900  .2500 2 4 5  3/8  251826 108.90  .7841  .8160 141.95 125.45 119.95 117.15 114.40 112.15
  27/32  .8438  .2900  .2500 2 4 5  3/8  251827 125.90  .8161  .8470 159.05 142.50 137.00 134.25 131.50 129.20
   7/8   .8750  .2900  .2500 2 4 5  3/8  251828 114.45  .8471  .8780 147.55 130.95 125.50 122.75 120.00 117.70
  29/32  .9063  .2900  .2500 3 4 6  1/8  251829 129.35  .8781  .9090 162.40 145.85 140.40 137.60 134.85 132.60
  15/16  .9375  .2900  .2500 3 4 6  1/8  251830 117.60  .9091  .9410 150.65 134.10 128.60 125.85 123.15 120.85
  31/32  .9688  .3530  .3125 3 4 6  3/8  251831 132.35  .9411  .9720 165.40 148.90 143.40 140.65 137.80 135.50
1         1.0000  .3530  .3125 3 4 6  3/8  251832 124.85  .9721 1.0030 159.20 142.05 136.30 133.50 130.50 128.20
1  1/16 1.0625  .3530  .3125 3 4 6  3/8  251834 126.50 1.0031 1.0660 160.75 143.60 137.90 135.10 132.15 129.80
1  1/8  1.1250  .3530  .3125 3 4 6  3/8  251836 130.45 1.0661 1.1280 164.85 147.75 141.90 139.10 136.20 133.85
1  3/16 1.1875  .3530  .3125 3 4 6  3/8  251838 134.90 1.1281 1.1905 169.35 152.15 146.35 143.55 140.65 138.30
* Quantities of 15 or more - price of fractional size in same size range
Don't see the Four Flutes - Taper Shank Counterbores you need?
If the above dimensions do not meet your specific Four Flutes - Taper Shank Counterbores needs we may be able to make modifications to one of the above 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 Four Flutes - Taper Shank Counterbores you requested.
Thank you for using Rock River Tool for your Four Flutes - Taper Shank Counterbores needs.