CENTERING DRILLS
NC Spotting
Art. 50814
20º
Z 2
Carbide
142º
Chamfer 90º
Countersink 142º
Cu
Brass
Mg
Plastic
ST
SST
C.I.
Al
l 2
l 1
Catalog Number
d 1 (in.)
l 2
l 1
d 1
40.50814.0020 40.50814.0030 40.50814.0040 40.50814.0050 40.50814.0060 40.50814.0080 40.50814.0100 40.50814.0120 40.50814.0140 40.50814.0160 40.50814.0200
2.00 3.00 4.00 5.00 6.00 8.00
.0787 .1181 .1575 .1969 .2362 .3150 .3937 .4724 .5512 .6299 .7874
8.50 9.50
25 32 40 50 50 60 70 70 75 75 75
10.50 16.00 16.00 20.00 22.00 22.00 25.00 25.00 35.00
10.00 12.00 14.00 16.00 20.00
• All dimensions are millimeters unless otherwise noted • TiAlSiN coated equivalent, Art. 50815; see pg. 22 • For cutting data see pg. 141
21
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