CENTERING DRILLS
Spotting & Chamfering
Art. 50818
90º
20º
Z 2
Carbide
142º
Double Countersink
Cu
Brass
Mg
Plastic
ST
SST
C.I.
Al
l 2
l 1
Catalog Number
d 1
d 1 (in.)
l 2
l 1
d 2
40.50818.0016 40.50818.0020 40.50818.0025 40.50818.0030 40.50818.0033 40.50818.0040 40.50818.0042 40.50818.0050 40.50818.0060 40.50818.0068 40.50818.0070 40.50818.0080 40.50818.0085 40.50818.0090 40.50818.0100 40.50818.0102 40.50818.0110 40.50818.0120
1.60 2.00 2.50 3.00 3.30 4.00 4.20 5.00 6.00 6.80 7.00 8.00 8.50 9.00
.0630 .0787 .0984 .1181 .1299 .1575 .1654 .1969 .2362 .2677 .2756 .3150 .3346 .3543 .3937 .4016 .4331 .4724
9.50 9.50
32 32 40 40 50 50 50 60 60 70 70 70 70 70 70 75 75 75
3.00 3.00 4.00 4.00 5.00 5.00 6.00 8.00 8.00
10.50 10.50 16.00 16.00 16.00 20.00 20.00 22.00 22.00 22.00 22.00 22.00 22.00 25.00 25.00 25.00
10.00 10.00 10.00 12.00 12.00 12.00 14.00 14.00 16.00
10.00 10.20 11.00 12.00
• All dimensions are millimeters unless otherwise noted • For cutting data see pg. 141
23
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