COUNTERBORES — CARBIDE TIPPED

FOUR FLUTES — STRAIGHT SHANK

TYPE 2512 — 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 Four Flutes - Straight Shank Counterbores. Please choose the Counterbores that meets your tooling needs.
Tool
Diameter		 Dimensions Type 2512
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*
   1/2   .5000  .2280  .1875    7/16 4 4  5/16 251216 $73.95  .4721  .5030 $102.60 $88.25 $83.50 $81.15 $78.70 $76.75
  17/32  .5313  .2280  .1875    1/2  4 4  5/16 251217 83.70  .5031  .5340 112.35 98.05 93.30 90.90 88.50 86.50
   9/16  .5625  .2280  .1875    1/2  4 4  5/16 251218 76.10  .5341  .5660 104.80 90.45 85.65 83.30 80.90 78.90
  19/32  .5938  .2280  .1875    1/2  4 5  1/8  251219 84.55  .5661  .5970 113.20 98.90 94.15 91.75 89.30 87.35
   5/8   .6250  .2280  .1875    1/2  4 5  1/8  251220 76.85  .5971  .6280 105.50 91.15 86.40 84.05 81.60 79.65
  21/32  .6563  .2280  .1875    1/2  4 5  1/8  251221 89.50  .6281  .6590 118.15 103.85 99.05 96.65 94.30 92.35
  11/16  .6875  .2280  .1875    1/2  4 5  1/8  251222 81.40  .6591  .6910 110.10 95.70 90.95 88.60 86.20 84.20
  23/32  .7188  .2900  .2500    1/2  4 5  3/8  251223 91.65  .6911  .7220 120.25 105.95 101.20 98.85 96.40 94.45
   3/4   .7500  .2900  .2500    1/2  4 5  3/8  251224 83.25  .7221  .7530 111.95 97.55 92.80 90.45 88.05 86.05
  25/32  .7813  .2900  .2500    5/8  4 5  3/8  251225 93.55  .7531  .7840 122.20 107.85 103.10 100.75 98.30 96.35
  13/16  .8125  .2900  .2500    5/8  4 5  3/8  251226 85.00  .7841  .8160 113.65 99.30 94.55 92.15 89.80 87.80
  27/32  .8438  .2900  .2500    3/4  4 5  3/8  251227 99.10  .8161  .8470 127.75 113.40 108.65 106.30 103.90 101.90
   7/8   .8750  .2900  .2500    3/4  4 5  3/8  251228 90.10  .8471  .8780 118.75 104.45 99.65 97.30 94.85 92.90
  29/32  .9063  .2900  .2500    3/4  4 6  1/8  251229 101.10  .8781  .9090 129.80 115.45 110.65 108.35 105.90 103.95
  15/16  .9375  .2900  .2500    3/4  4 6  1/8  251230 91.95  .9091  .9410 120.65 106.30 101.50 99.15 96.75 94.75
  31/32  .9688  .3530  .3125    3/4  4 6  3/8  251231 104.05  .9411  .9720 132.70 118.35 113.60 111.25 108.80 106.85
1         1.0000  .3530  .3125    3/4  4 6  3/8  251232 94.60  .9721 1.0030 123.30 108.90 104.15 101.80 99.40 97.40
1  1/16 1.0625  .3530  .3125    3/4  4 6  3/8  251234 95.60 1.0031 1.0660 124.30 109.90 105.15 102.80 100.40 98.40
1  1/8  1.1250  .3530  .3125 1         4 6  3/8  251236 98.05 1.0661 1.1280 126.65 112.35 107.60 105.20 102.80 100.85
1  3/16 1.1875  .3530  .3125 1         4 6  3/8  251238 102.40 1.1281 1.1905 131.05 116.75 112.00 109.60 107.15 105.20
* Quantities of 15 or more - price of fractional size in same size range
Don't see the Four Flutes - Straight Shank Counterbores you need?
If the above dimensions do not meet your specific Four Flutes - Straight Shank Counterbores needs we may be able to make modifications to one of the above 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 Four Flutes - Straight Shank Counterbores you requested.
Thank you for using Rock River Tool for your Four Flutes - Straight Shank Counterbores needs.