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428H18 High-Performance Spiral-Point Taps for Multiple Materials

$46.57

Bulk orders will be discounted, please contact us.

The THL coating on these taps protects them from wear and provides better chip formation than TiN and TiCN coatings. THL-coated taps are suitable for threading high-speed steel, cast iron, and aluminum alloys, and they can be used with or without coolant.

Product Number: 428H18

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  • Description
Mfr Model EP2221302-UNC1/4
Thread Size 1/4"-20
Tap Material High Speed Steel
Tap Finish THL
Thread Length 9/16 in
Overall Length 3-1/8 in
Thread Limit H4; H5
Number of Flutes 3
Tap Length Standard DIN
Tap Shank Standard ANSI
Primary Material Application Aluminum; Brass; Bronze; Cast Iron; Copper; Stainless Steel; Steel
Thread Direction Right Hand
Coolant Fed Non-Coolant Through
Drill Bit Size 0.2010 in
Extended Neck Yes
Material Grade Machining WP42EG
Measurement System Fractional Inch
Primary Material Application ISO Code K; M; N; P
Shank Dia 1/8 in
Shank Length 1-31/32 in
Square Size 0.2170 in
Standards ANSI
Tap Chamfer Plug
Tap Thread Size 1/4"-20
Threads per Inch 20
UNSPSC 27112806
Country of Origin Germany (subject to change)
Thread Standard UNC
Shank Type Machining Straight
Secondary Material Application Composite
Secondary Material Application ISO Code O
Spiral Direction Neutral
Class of Fit H3
Thread Pitch 1.50 mm

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