CORE DRILLS — CARBIDE TIPPED

STRAIGHT SHANK — FRACTIONAL SIZES

TYPE 2620 — STRAIGHT SHANK — FRACTIONAL SIZES

Cutting diameter tolerance plus .000" minus .001".
Carbide tips brazed to one piece hardened tool steel bodies.
Large right spiral flute capacity permits higher feeds and speeds.
118ยบ included chamfer angle.

USE:

Core drills are designed for economically enlarging cored, punched or drilled holes, removing up to 30% of the hole diameter.
The balanced cutting action of the core drill removes considerably more material than a reamer, often eliminating the need for a final reaming or boring operation.
For cast iron, non-ferrous metals, some steels, composites, plastics and non-metals.

OPTIONS

Intermediate decimal & metric sizes — see priced table below.
Special point angles.


Below are the critical dimensions of our Core Drills. Please choose the Drills that meets your tooling needs.
Tool
Diameter		 Dimensions Type 2620
EDP NO.		 Price Finished To Modified Tool Diameter
Diameter Length Modified Diameter Range Price Each - Based on Quantity Ordered
Frac. Dec. Min. Cut Shank Flute Carbide Overall Low High 1 2 3 4 5-7 8-14**
   3/8  *  .3750  .2620    3/8  3  1/2     5/8  6  3/4  262012 $114.00  .3471  .3780 $155.65 $134.70 $127.75 $124.45 $120.80 $118.15
  13/32 *  .4063  .2840   13/32 3  5/8     5/8  7         262013 114.00  .3781  .4090 155.65 134.70 127.75 124.45 120.80 118.15
   7/16 *  .4375  .3060    7/16 3  7/8     3/4  7  1/4  262014 114.00  .4091  .4410 155.65 134.70 127.75 124.45 120.80 118.15
  15/32 *  .4688  .3280   15/32 4  1/8     3/4  7  1/2  262015 114.00  .4411  .4720 155.65 134.70 127.75 124.45 120.80 118.15
   1/2   .5000  .3500    1/2  4  3/8     3/4  8  1/4  262016 114.00  .4721  .5030 155.65 134.70 127.75 124.45 120.80 118.15
  17/32  .5313  .3720   17/32 4  3/8     3/4  8  1/4  262017 114.45  .5031  .5340 156.20 135.30 128.25 125.00 121.40 118.50
   9/16  .5625  .3940    9/16 4  3/8     3/4  8  1/4  262018 114.45  .5341  .5660 156.20 135.30 128.25 125.00 121.40 118.50
  19/32  .5938  .4160   19/32 4  3/8     3/4  8  1/4  262019 120.20  .5661  .5970 161.85 140.95 134.05 130.70 127.10 124.35
   5/8   .6250  .4380    5/8  4  3/8     3/4  8  1/4  262020 120.20  .5971  .6280 161.85 140.95 134.05 130.70 127.10 124.35
  21/32  .6563  .4590   21/32 4  3/8     3/4  8  1/4  262021 121.55  .6281  .6590 163.30 142.40 135.50 132.05 128.65 125.75
  11/16  .6875  .4810   11/16 4  3/8     7/8  8  1/4  262022 122.70  .6591  .6910 164.40 143.55 136.45 133.15 129.60 126.75
  23/32  .7188  .5030   23/32 4  3/8     7/8  8  1/4  262023 122.70  .6911  .7220 164.40 143.55 136.45 133.15 129.60 126.75
   3/4   .7500  .5250    3/4  4  3/8     7/8  8  1/4  262024 122.70  .7221  .7530 164.40 143.55 136.45 133.15 129.60 126.75
  25/32  .7813  .5470   25/32 4  3/8     7/8  8  1/4  262025 125.35  .7531  .7840 167.00 146.20 139.20 135.85 132.35 129.50
  13/16  .8125  .5690   13/16 4  7/8     7/8  9  1/2  262026 128.85  .7841  .8160 170.60 149.75 142.65 139.45 135.70 133.05
  27/32  .8438  .5910   27/32 4  7/8     7/8  9  1/2  262027 135.70  .8161  .8470 177.45 156.60 149.60 146.25 142.65 139.85
   7/8   .8750  .6120    7/8  4  7/8     7/8  9  1/2  262028 135.70  .8471  .8780 177.45 156.60 149.60 146.25 142.65 139.85
  29/32  .9063  .6340   29/32 4  7/8     7/8  9  1/2  262029 136.55  .8781  .9090 178.25 157.45 150.40 147.10 143.60 140.70
  15/16  .9375  .6560   15/16 4  7/8     7/8  9  1/2  262030 136.55  .9091  .9410 178.25 157.45 150.40 147.10 143.60 140.70
  31/32  .9688  .6780   31/32 4  7/8     7/8  9  1/2  262031 141.75  .9411  .9720 183.30 162.40 155.50 152.25 148.55 145.80
1         1.0000  .7000 1         4  7/8     7/8  9  1/2  262032 144.35  .9721 1.0030 186.05 165.15 158.05 154.80 151.20 148.40
1  1/32 1.0313  .7220 1  1/32 4  7/8     7/8  9  1/2  262033 145.55 1.0031 1.0340 187.15 166.20 159.35 155.95 152.45 149.60
1  1/16 1.0625  .7440 1  1/16 4  7/8     7/8  9  1/2  262034 147.55 1.0341 1.0660 189.25 168.30 161.35 158.00 154.40 151.65
1  3/32 1.0938  .7660 1  3/32 4  7/8  1         10  1/2  262035 171.85 1.0661 1.0970 213.45 192.65 185.65 182.35 178.75 175.95
1  1/8  1.1250  .7870 1  1/8  4  7/8  1         10  1/2  262036 171.85 1.0971 1.1280 213.45 192.65 185.65 182.35 178.75 175.95
1  5/32 1.1563  .8090 1  5/32 4  7/8  1         10  1/2  262037 187.60 1.1281 1.1590 229.25 208.45 201.45 198.15 194.55 191.70
1  3/16 1.1875  .8310 1  3/16 4  7/8  1         10  1/2  262038 193.05 1.1591 1.1905 234.70 213.95 206.80 203.55 200.00 197.20
1  7/32 1.2188  .8530 1  7/32 4  7/8  1         10  1/2  262039 193.75 1.1906 1.2220 235.45 214.55 207.65 204.25 200.60 197.85
1  1/4  1.2500    7/8  1  1/4  4  7/8  1         10  1/2  262040 194.55 1.2221 1.2530 236.25 215.35 208.40 205.00 201.45 198.60
1  9/32 1.2813  .8970 1  9/32 4  7/8  1         10  1/2  262041 208.45 1.2531 1.2840 250.15 229.20 222.25 218.85 215.35 212.45
1  5/16 1.3125  .9190 1  5/16 4  7/8  1         10  1/2  262042 214.20 1.2841 1.3150 255.95 235.05 228.00 224.75 221.15 218.25
1 11/32 1.3438  .9400 1 11/32 4  7/8  1         10  1/2  262043 218.70 1.3151 1.3470 260.40 239.55 232.50 229.20 225.70 222.75
1  3/8  1.3750  .9620 1  3/8  4  7/8  1         10  1/2  262044 224.05 1.3471 1.3780 265.70 244.85 237.80 234.50 230.95 228.05
1 13/32 1.4063   63/64 1 13/32 4  7/8  1         10  1/2  262045 229.10 1.3781 1.4090 270.80 250.00 242.90 239.60 236.05 233.25
1  7/16 1.4375 1.0060 1  7/16 4  7/8  1         10  1/2  262046 235.80 1.4091 1.4410 277.55 256.70 249.65 246.35 242.80 240.00
1 15/32 1.4688 1.0250 1 15/32 4  7/8  1         10  1/2  262047 242.85 1.4411 1.4720 284.45 263.65 256.70 253.35 249.70 247.00
1  1/2  1.5000 1.0500 1  1/2  4  7/8  1         10  1/2  262048 248.15 1.4721 1.5030 289.75 268.80 261.90 258.55 254.95 252.25
* 3 flutes
** Quantities of 15 or more - price of fractional size in same size range
Don't see the Core Drills you need?
If the above dimensions do not meet your specific Core Drills needs we may be able to make modifications to one of the above Core Drills 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 Core Drills you requested.
Thank you for using Rock River Tool for your Core Drills needs.