CORE DRILLS — CARBIDE TIPPED

STRAIGHT SHANK — METRIC SIZES

TYPE 2620 — STRAIGHT SHANK — METRIC 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 metric sizes - see priced table below.
Special point angles.


NOTE:
Tool diameter in millimeters (mm); all other dimensions in inches.

METRIC DIAMETERS

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 (mm) Price Each - Based on Quantity Ordered
mm Inch Min. Cut Shank Flute Carbide Overall Low High 1 2 3 4 5-7 8-14 Over 14
9.0 *  .3543  .2620    3/8  3  1/2     5/8  6  3/4  2620090 $127.75 8.8150 9.6010 $159.15 $138.35 $131.25 $127.85 $124.45 $121.50 $117.50
10.0 *  .3937  .2840   13/32 3  5/8     5/8  7         2620100 127.75 9.6020 10.3890 159.15 138.35 131.25 127.85 124.45 121.50 117.50
11.0 *  .4331  .3060    7/16 3  7/8     3/4  7  1/4  2620110 127.75 10.3900 11.2010 159.15 138.35 131.25 127.85 124.45 121.50 117.50
—  .3280   15/32 4  1/8     3/4  7  1/2  2620119 11.2020 11.9890 159.15 138.35 131.25 127.85 124.45 121.50 117.50
12.0  .4724  .3500    1/2  4  3/8     3/4  8  1/4  2620120 127.75 11.9900 12.7760 159.15 138.35 131.25 127.85 124.45 121.50 117.50
13.0  .5118  .3720   17/32 4  3/8     3/4  8  1/4  2620130 128.25 12.7770 13.5640 159.55 138.90 131.85 128.55 125.00 122.10 118.15
14.0  .5512  .3940    9/16 4  3/8     3/4  8  1/4  2620140 128.25 13.5650 14.3760 159.55 138.90 131.85 128.55 125.00 122.10 118.15
15.0  .5906  .4160   19/32 4  3/8     3/4  8  1/4  2620150 134.05 14.3770 15.1640 165.40 144.55 137.60 134.20 130.70 127.75 123.75
—  .4380    5/8  4  3/8     3/4  8  1/4  2620159 15.1650 15.9510 165.40 144.55 137.60 134.20 130.70 127.75 123.75
16.0  .6299  .4590   21/32 4  3/8     3/4  8  1/4  2620160 135.50 15.9520 16.7390 166.85 146.00 139.00 135.60 132.05 129.10 125.25
17.0  .6693  .4810   11/16 4  3/8     7/8  8  1/4  2620170 136.45 16.7400 17.5510 167.90 147.00 139.95 136.55 133.15 130.20 126.20
18.0  .7087  .5030   23/32 4  3/8     7/8  8  1/4  2620180 136.45 17.5520 18.3390 167.90 147.00 139.95 136.55 133.15 130.20 126.20
19.0  .7480  .5250    3/4  4  3/8     7/8  8  1/4  2620190 136.45 18.3400 19.1260 167.90 147.00 139.95 136.55 133.15 130.20 126.20
—  .5470   25/32 4  3/8     7/8  8  1/4  2620199 19.1270 19.9140 170.60 149.85 142.90 139.45 135.85 133.05 128.95
20.0  .7874  .5690   13/16 4  7/8     7/8  9  1/2  2620200 142.65 19.9150 20.7260 174.05 153.30 146.25 142.95 139.45 136.45 132.45
21.0  .8268  .5910   27/32 4  7/8     7/8  9  1/2  2620210 149.60 20.7270 21.5140 181.00 160.15 153.20 149.85 146.25 143.40 139.45
22.0  .8661  .6120    7/8  4  7/8     7/8  9  1/2  2620220 149.60 21.5150 22.3010 181.00 160.15 153.20 149.85 146.25 143.40 139.45
23.0  .9055  .6340   29/32 4  7/8     7/8  9  1/2  2620230 150.40 22.3020 23.0890 181.80 161.05 154.10 150.55 147.10 144.30 140.25
—  .6560   15/16 4  7/8     7/8  9  1/2  2620239 23.0900 23.9010 181.80 161.05 154.10 150.55 147.10 144.30 140.25
24.0  .9449  .6780   31/32 4  7/8     7/8  9  1/2  2620240 155.50 23.9020 24.6890 186.85 166.05 159.10 155.65 152.25 149.20 145.20
25.0  .9843  .7000 1         4  7/8     7/8  9  1/2  2620250 158.05 24.6900 25.4760 189.50 168.70 161.75 158.25 154.80 151.90 147.90
26.0 1.0236  .7220 1  1/32 4  7/8     7/8  9  1/2  2620260 159.35 25.4770 26.2640 190.65 169.90 162.90 159.45 155.95 153.15 149.05
27.0 1.0630  .7440 1  1/16 4  7/8     7/8  9  1/2  2620270 161.35 26.2650 27.0760 192.85 171.90 164.90 161.55 158.00 155.15 151.15
—  .7660 1  3/32 4  7/8  1         10  1/2  2620279 27.0770 27.8640 217.05 196.20 189.25 185.75 182.35 179.40 175.50
28.0 1.1024  .7870 1  1/8  4  7/8  1         10  1/2  2620280 185.65 27.8650 28.6510 217.05 196.20 189.25 185.75 182.35 179.40 175.50
29.0 1.1417  .8090 1  5/32 4  7/8  1         10  1/2  2620290 201.45 28.6520 29.4390 232.80 212.05 205.00 201.65 198.15 195.15 191.10
30.0 1.1811  .8310 1  3/16 4  7/8  1         10  1/2  2620300 206.80 29.4400 30.2390 238.25 217.40 210.55 206.95 203.55 200.60 196.65
31.0 1.2205  .8530 1  7/32 4  7/8  1         10  1/2  2620310 207.65 30.2400 31.0390 238.95 218.10 211.20 207.75 204.25 201.25 197.30
—    7/8  1  1/4  4  7/8  1         10  1/2  2620319 31.0400 31.8260 239.65 218.85 212.00 208.55 205.00 202.10 198.15
32.0 1.2598  .8970 1  9/32 4  7/8  1         10  1/2  2620320 222.25 31.8270 32.6140 253.70 232.80 225.85 222.45 218.85 216.00 212.05
33.0 1.2992  .9190 1  5/16 4  7/8  1         10  1/2  2620330 228.00 32.6150 33.4010 259.35 238.50 231.55 228.15 224.75 221.85 217.85
34.0 1.3386  .9400 1 11/32 4  7/8  1         10  1/2  2620340 232.50 33.4020 34.2140 264.00 243.20 236.15 232.75 229.20 226.35 222.35
35.0 1.3780  .9620 1  3/8  4  7/8  1         10  1/2  2620350 237.80 34.2150 35.0010 269.30 248.40 241.45 238.00 234.50 231.55 227.65
—   63/64 1 13/32 4  7/8  1         10  1/2  2620359 35.0020 35.7890 274.30 253.60 246.45 243.20 239.60 236.75 232.75
36.0 1.4173 1.0060 1  7/16 4  7/8  1         10  1/2  2620360 249.65 35.7900 36.6010 281.05 260.25 253.30 249.75 246.35 243.45 239.50
37.0 1.4567 1.0250 1 15/32 4  7/8  1         10  1/2  2620370 256.70 36.6020 37.3890 288.05 267.25 260.25 256.90 253.35 250.40 246.40
38.0 1.4961 1.0500 1  1/2  4  7/8  1         10  1/2  2620380 261.90 37.3900 38.1760 293.20 272.45 265.50 262.00 258.55 255.65 251.60
* 3 flutes

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.