Material types: high carbon steel for hand tapping applications and high speed steel for machine tapping where critical dimensions are required
Etched: tap size and recommended drill bit size are etched on each tool for easy identification
Point styles: taper, plug, and bottoming styles are available
All Irwin Hanson taps and dies are made in USA

Steel Machine Screw Tap Specs:

Precision ground straight flutes provide rapid chip removal for efficient threading
Designed for hand threading work
Taps produce a class 2B thread
1 to 1-1/2 threads chamfered
Used when threads must go to bottom of hole
Ideal for all general-purpose threading
Ideal for tough threading work, routine maintenance, repair and for re-threading where high accuracy and tolerance thread is not critical

Irwin Hanson 1540 - High Carbon Steel Machine Screw Fractional Bottom Tap 7/16"-20 NF

Part #: AHN1540

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Retail Price:$7.46

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