Page 120 - Michigan Drill

Combined Drills & Countersinks

High Speed Steel

Metric Plain Type
HOLE MAKING Size Diameter Drill Diameter Overall Price Size Diameter Drill Diameter Overall 13.23
List No. 585M – 60° Countersink Angle
Body
Body
Price
and Length
Each
Each
Length
Length
and Length
.3150
.1240
3.15
.1240
.0315
1
9.00
.80
2
1.00
4.00
2-1/4
9.00
22.59
.1240
.0394
1-1/4
.3937
.1575
1.25
1-5/16
.1575
2-3/4
.0630
.2480
45.72
.6299
8.55
6.30
1.60
.1969
71.10
.0787
8.00
.3150
.7874
2.00 .1240 .0492 1-1/4 9.00 5.00 .4921 .1969 2-1/2 31.23
3-1/8
9.54
1-9/16
2.50 .2480 .0984 1-3/4 10.80 10.00 .9843 .3937 4 82.75
Carbide Tipped
These drills are used for center drilling hardened
high speed steel in the range up to 65R.
List No. CT870 – 60° Countersink Angle, 120° Point
Body Drill Overall Price Body Drill Overall Price
Size Size
Diameter Diameter Length Each Diameter Diameter Length Each
4-1 5/16 3/32 2-1/8 66.02 6-1 1/2 7/32 3 84.33
4-2 5/16 1/8 2-1/8 66.02 6-2 1/2 9/32 3 84.33
Spotting & Centering Drills
High Speed Steel
These drills are used for starting and centering screw machine
operations. Their short flute and overall length increase rigidity
while minimizing runout. To provide greater rigidity, these drills
are made with short overall and flute lengths.
Spotting & Centering
List No. 302 – Right Hand, 118° Point
List No. 302LH – Left Hand, 118° Point
Price Each Price Each
Decimal Flute Overall Right Hand Left Hand Decimal Flute Overall Right Hand Left Hand
Size Size
Equivalent Length Length 302 302LH Equivalent Length Length 302 302LH
3/8 .3750 1 2 8.82 13.06 7/8 .8750 1-1/4 2-1/2 50.31 58.50
7/16 .4375 1 2 17.28 17.74 1 1.0000 1-1/4 2-1/2 56.52 62.78
1/2 .5000 1 2 15.48 19.04 1-1/4 1.2500 2 4 112.50 138.40
9/16 .5625 1-1/8 2-1/4 24.57 –– 1-1/2 1.5000 2-1/2 5 175.50 189.00
5/8 .6250 1-1/8 2-1/4 24.57 29.70 1-3/4 1.7500 2-3/4 5-1/2 265.50 289.80
3/4 .7500 1-1/8 2-1/4 35.01 41.40 2 2.0000 3-3/4 6 315.00 ––
Center Drills
List No. 580 – 118° Point
Decimal Flute Overall Price Decimal Flute Overall Price
Size Size
Equivalent Length Length Each Equivalent Length Length Each
#56 .0465 3/8 1-3/16 1.78 5/32 .1562 1 1-1/2 2.87
#54 .0550 9/16 1-1/4 1.78 #21 .1590 1 1-1/2 2.87
#53 .0595 9/16 1-1/4 1.78 #20 .1610 1 1-1/2 2.87
1/16* .0625 3/8 1-3/16 1.78 11/64 .1719 1 1-1/2 2.87
5/64 .0781 3/4 1-1/4 1.78 3/16 .1875 1 1-1/2 2.87
3/32 .0938 3/4 1-1/4 1.95 13/64 .2031 1 1-1/2 2.87
#40 .0980 3/4 1-1/4 1.95 #5 .2055 1 1-1/2 2.87
7/64 .1094 3/4 1-1/4 1.95 7/32 .2188 1 1-1/2 2.87
1/8 .1250 3/4 1-1/4 1.65 15/64 .2344 1 1-1/2 3.50
#30 .1285 3/4 1-1/4 1.72 1/4 .2500 1 1-1/2 3.20
#28 .1405 1 1-1/2 2.57 9/32 .2812 1 1-1/2 4.46
9/64 .1406 3/4 1-1/4 2.57 5/16 .3125 1 1-1/2 5.28
*This size is available in Cobalt, Price Each $4.86
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