Page 103 - Michigan Drill

Carbide Tipped Drills

High Speed Steel Body

Jobber Length
List No. CT830 – 118° Point
These Carbide Tipped Drills are designed for drilling abrasive and
nonferrous materials such as castings, hard rubber and copper alloys.
They are NOT recommended for drilling steel or other ferrous materials. HOLE MAKING
Metric Sizes

Decimal Flute Overall Decimal Flute Overall
Size Price Size Price
Equivalent Length Length Equivalent Length Length
3.00 .1181 1-5/8 2-3/4 21.79 7.50 .2953 3-1/16 4-3/8 30.37
3.10 .1220 1-5/8 2-3/4 23.20 8.00 .3150 3-3/16 4-1/2 32.13
3.20 .1260 1-5/8 2-3/4 23.20 8.50 .3346 3-7/16 4-3/4 33.19
3.30 .1299 1-3/4 2-7/8 23.20 9.00 .3543 3-1/2 4-7/8 34.31
3.50 .1378 1-3/4 2-7/8 23.20 9.50 .3740 3-5/8 5 35.13
4.00 .1575 2-1/8 3-1/4 24.61 10.00 .3937 3-3/4 5-1/8 37.31
4.50 .1772 2-3/16 3-3/8 24.61 10.50 .4134 3-15/16 5-3/8 40.44
5.00 .1969 2-7/16 3-5/8 25.62 11.00 .4331 4-1/16 5-1/2 42.72
5.50 .2165 2-1/2 3-3/4 25.92 11.50 .4528 4-3/16 5-5/8 42.72
6.00 .2362 2-3/4 4 26.62 12.00 .4724 4-3/8 5-7/8 52.16
6.40 .2520 2-7/8 4-1/8 28.06 12.50 .4921 4-1/2 6 60.13
6.50 .2559 2-7/8 4-1/8 28.06 13.00 .5118 4-1/2 6 66.90
7.00 .2756 2-7/8 4-1/8 29.13

Taper Shank
List No. CT820 – 118° Point
Provides excellent wear resistance when cutting aluminum castings,
bronze, cast and ductile irons, fiberglass, hard plastics and other non
ferrous materials. NOT recommended for steel applications.
Dec. Flute Overall Morse Price Dec. Flute Overall Morse Price
Size Size
Equiv. Length Length Taper Each Equiv. Length Length Taper Each
1/8 .1250 1-7/8 5-1/8 1 38.04 11/16 .6875 5-3/8 9-1/4 2 117.90
9/64 .1406 2-1/8 5-3/8 1 38.04 45/64 .7031 5-5/8 9-1/2 2 125.57
5/32 .1563 2-1/8 5-3/8 1 40.08 23/32 .7188 5-5/8 9-1/2 2 121.10
11/64 .1719 2-1/2 5-3/4 1 40.79 47/64 .7344 5-7/8 9-3/4 2 128.17
3/16 .1875 2-1/2 5-3/4 1 40.79 3/4 .7500 5-7/8 9-3/4 2 123.60
13/64 .2031 2-3/4 6 1 43.12 49/64 .7656 6 9-7/8 2 133.94
7/32 .2188 2-3/4 6 1 43.12 25/32 .7813 6-1/8 9-7/8 2 135.26
15/64 .2344 2-7/8 6-1/8 1 47.50 51/64 .7969 6-1/8 10-3/4 3 138.34
1/4 .2500 2-7/8 6-1/8 1 47.50 13/16 .8125 6-1/8 10-3/4 3 146.77
17/64 .2656 3 6-1/4 1 49.38 53/64 .8281 6-1/8 10-3/4 3 157.93
9/32 .2813 3 6-1/4 1 48.48 27/32 .8438 6-1/8 10-3/4 3 157.21
19/64 .2969 3-1/8 6-3/8 1 49.38 55/64 .8594 6-1/8 10-3/4 3 148.86
5/16 .3125 3-1/8 6-3/8 1 48.48 7/8 .8750 6-1/8 10-3/4 3 148.86
21/64 .3281 3-1/4 6-1/2 1 62.75 57/64 .8906 6-1/8 10-3/4 3 152.75
11/32 .3438 3-1/4 6-1/2 1 61.61 29/32 .9063 6-1/8 10-3/4 3 152.75
23/64 .3594 3-1/2 6-3/4 1 62.75 59/64 .9219 6-1/8 10-3/4 3 159.46
3/8 .3750 3-1/2 6-3/4 1 61.61 15/16 .9375 6-1/8 10-3/4 3 159.46
25/64 .3906 3-5/8 7 1 72.84 61/64 .9531 6-3/8 11 3 171.13
13/32 .4063 3-5/8 7 1 71.50 31/32 .9688 6-3/8 11 3 168.70
27/64 .4219 3-7/8 7-1/4 1 72.84 63/64 .9844 6-3/8 11 3 171.13
7/16 .4375 3-7/8 7-1/4 1 71.50 1 1.0000 6-3/8 11 3 165.99
29/64 .4531 4-1/8 7-1/2 1 88.07 1-1/32 1.0313 6-1/2 11-1/8 3 205.20
15/32 .4688 4-1/8 7-1/2 1 86.47 1-3/64 1.0469 6-5/8 11-1/4 3 215.00
31/64 .4844 4-3/8 8-1/4 2 88.07 1-1/16 1.0625 6-5/8 11-1/4 4 207.90
1/2 .5000 4-3/8 8-1/4 2 90.79 1-5/64 1.0781 6-7/8 12-1/2 4 216.00
33/64 .5156 4-5/8 8-1/2 2 98.59 1-3/32 1.0938 6-7/8 12-1/2 4 225.00
17/32 .5313 4-5/8 8-1/2 2 95.07 1-1/8 1.1250 7-1/8 12-3/4 4 230.58
35/64 .5469 4-7/8 8-3/4 2 99.93 1-9/64 1.1406 7-1/4 12-7/8 4 266.22
9/16 .5625 4-7/8 8-3/4 2 96.36 1-5/32 1.1563 7-1/4 12-7/8 4 261.00
37/64 .5781 4-7/8 8-3/4 2 104.59 1-11/64 1.1719 7-3/8 13 4 268.97
19/32 .5938 4-7/8 8-3/4 2 100.87 1-3/16 1.1875 7-3/8 13 4 263.70
39/64 .6094 4-7/8 8-3/4 2 119.03 1-13/64 1.2031 7-1/2 13-1/8 4 284.67
5/8 .6250 4-7/8 8-3/4 2 114.77 1-7/32 1.2188 7-1/2 13-1/8 4 279.00
41/64 .6406 5-1/8 9 2 126.20 1-15/64 1.2344 7-7/8 13-1/2 4 288.25
21/32 .6563 5-1/8 9 2 121.69 1-1/4 1.2500 7-7/8 13-1/2 4 282.60
43/64 .6719 5-3/8 9-1/4 2 122.27
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