型号
“A”尺寸
“B”尺寸
导杆尺寸
钻头尺寸
AT518A
#6
0.344
0.688
0.139
#40
AT518B
#8
0.164
AT518C
#10
0.191
AT518D
1/4
0.500
1.000
0.248
AT518E
5/16
0.312
#30
AT518F
3/8
0.372
AT518HO
0.375
0.750
AT518KL
0.1875
AT518M
0.4375
AT518NAS-A-A5
0.359
0.718
AT518NAS-A-A6
0.414
0.828
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