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428H39 High-Performance Spiral-Flute Taps for Multiple Materials

$118.58

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. Coolant-through taps have holes that allow coolant to flow to their tip to reduce heat and friction during threading tasks.

Product Number: 428H39

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  • Description
Mfr Model EP2256312-UNC1/2
Thread Size 1/2"-13
Tap Material High Speed Steel
Tap Finish THL
Thread Length 11/16 in
Overall Length 4-5/16 in
Thread Limit H5; H6
Number of Flutes 4
Tap Length Standard DIN
Tap Shank Standard DIN 2184-1
Primary Material Application Aluminum; Brass; Bronze; Cast Iron; Copper; Stainless Steel; Steel
Thread Direction Right Hand
Coolant Fed Coolant Through
Drill Bit Size 0.4250 in
Extended Neck Yes
Helix Angle 45 °
Material Grade Machining TIN/VAP
Measurement System Fractional Inch
Primary Material Application ISO Code K; M; N; P
Shank Dia 11/32 in
Shank Length 3-29/32 in
Square Size 0.2760 in
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 Germany (subject to change)
Thread Standard UNC
Features For Long Chipping Materials
Shank Type Machining Straight
Secondary Material Application Aluminum; Brass; Bronze; Copper
Secondary Material Application ISO Code N
Spiral Direction Right Hand
Class of Fit 2B
Thread Pitch 1.00mm
Powdered Metal Base Material Cobalt

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