CRAFTSMAN No. 4011 Reference Table Tap Drill Sizes 75% Depth Of Thread Vintage

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CRAFTSMAN No. 4011 Reference Table Tap Drill Sizes 75% Depth Of Thread Vintage:
$12.00

Vintage used. 7 x 1.25 inches. All straight, black print all legible.Made in USA.Stainless steel, has 1 hole on top to slip on hook.
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Side 1: Tap Drill Sizes: 4 Categories: National Fine, National Special, National Course, American Standard Pipe.Each category has 2 columns: Tap & Drill.Bottom right has section for 2 formulas for:
1) Tap Drill for 75% Thread
2) Tap Drill for 100% Thread------Side 2: 6 inch ruler w fractions 8, 16...56Decimal Equivalent Chart:
1/64 = .0156....15/16=.9375. Some age /wear but all legible.

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