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427R91 Spiral-Flute STI Taps

$7.62Including 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. Cobalt taps are harder and provide more wear resistance when tapping hard materials at high speeds than high-speed steel taps.

Product Number: 427R91

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  • Description
Mfr Model A234000-STIUNF10
Thread Size #10-32
Tap Material High Speed Steel
Tap Finish Black Oxide
Thread Length 16.00 mm
Overall Length 63.50 mm
Thread Limit H2
Number of Flutes 3
Primary Material Application Cast Iron; Steel
Thread Direction Right Hand
Coolant Fed Non-Coolant Through
Extended Neck Yes
Interrupted Thread No
Material Grade Machining NIT
Measurement System Pipe
Primary Material Application ISO Code K; P
Shank Dia 6.48 mm
Shank Length 35.50 mm
Square Size 4.85 mm
Standards ANSI B94.9
Tap Chamfer Modified Bottoming; Semi-Bottoming
Tap Style Spiral Flute
Tap Thread Size #10-32
Threads per Inch 32
UNSPSC 27112806
Country of Origin Germany (subject to change)
Thread Standard EGUNF
Features High Performance
Shank Type Machining Straight
Secondary Material Application Aluminum; Brass; Bronze; Copper; Nickel; Titanium
Secondary Material Application ISO Code N; S
Spiral Direction Right Hand
Class of Fit 3B
Thread Pitch 1.00mm

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