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
4.50818.0160 4.50818.0200 4.50818.0250 4.50818.0300 4.50818.0330 4.50818.0400 4.50818.0420 4.50818.0500 4.50818.0600 4.50818.0680 4.50818.0700 4.50818.0800 4.50818.0850 4.50818.0900 4.50818.1000 4.50818.1020 4.50818.1100 4.50818.1200
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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