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428N91 Spiral-Flute STI Taps

$84.29Including tariffs

Bulk orders will be discounted, please contact us.

The black-oxide finish on these taps retains lubricants to improve the taps' wear resistance and chip flow. Black-oxide taps should only be used on ferrous metals. High-speed steel taps provide good wear resistance in general purpose tapping applications in a range of materials.

Product Number: 428N91

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  • Description
Mfr Model M225549-EGUNC1/2
Thread Size 1/2"-13
Tap Material High Speed Steel
Tap Finish VAP
Thread Length 20.00 mm
Overall Length 110.00 mm
Thread Limit H4
Number of Flutes 4
Primary Material Application Stainless Steel
Thread Direction Right Hand
Coolant Fed Non-Coolant Through
Extended Neck Yes
Interrupted Thread No
Material Grade Machining VAP
Measurement System Fractional Inch
Primary Material Application ISO Code M
Shank Dia 12.00 mm
Shank Length 42.00 mm
Square Size 7.00 mm
Standards DIN 2184-1
Tap Chamfer Modified Bottoming; Semi-Bottoming
Tap Style Spiral Flute
Tap Thread Size 1/2"-13
Threads per Inch 13
UNSPSC 27112806
Country of Origin India (subject to change)
Thread Standard UNC
Features For Long-Chipping Materials
Shank Type Machining Straight
Secondary Material Application Steel
Secondary Material Application ISO Code P
Spiral Direction Right Hand
Class of Fit 3B
Thread Pitch 2.00mm

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