Letter Size Drills
Diameter in Inches

Ltr. Dia. A .234 B .238 C .242 D .246 E .250 F .257 G .261 H .266 I .272 J .277 K .281 L .290 M .295

Ltr. Dia. N .302 O .316 P .323 Q .332 R .339 S .348 T .358 U .368 V .377 W .386 X .397 Y .404 Z .413

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Number Drill Size Index
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