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DRILL TECHNOLOGY

Ring Decimal Chart Menu Part 1

Size Decimal
Inch		 Ring Color
.10mm .0039  
.13 mm .0051  
97 /
.15mm		 .0059  
96 .0063  
95 .0067  
94 .0071  
93 .0075  
92 /
.20mm		 .0079  
91 .0083  
90 .0087  
89 .0091  
88 .0095  
.25mm .0098  
87 .0100  
86 .0105  
85 .0110  
84 .0115  
.30mm .0118  
83 .0120  
82 .0125  
81 .0130  
80 .0135  
.35mm .0138  
79 .0145  
1/64 .0156  
.40mm .0157  
78 .0160  
.45mm .0177  
77 .0180  
.50mm .0197  
76 .0200  
75 .0210  
.55mm .0217  
74 .0225  
.60mm .0236  
73 .0240  
72 .0250  
.65mm .0256  
71 .0260  
.70mm .0276  
70 .0280  
69 .0292  
.75mm .0295  
68 .0310  
1/32 .0312  
.80mm .0315  

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