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449R85 Extension Taps

$46.45

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. Spiral-point taps have straight flutes with a spiral point that pushes chips in front of the tap as it moves into a hole and out the other side, eventually forcing the chips out of the hole. They are used for threading through holes.

Product Number: 449R85

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  • Description
Mfr Model 313545
Thread Size 3/4"-16
Tap Material High Speed Steel
Tap Finish Bright (Uncoated)
Thread Length 1-7/32 in
Overall Length 6 in
Thread Limit 5/8 in
Number of Flutes 3
Tap Length Standard USCTI Table 302A
Tap Shank Standard USCTI Table 302A
Primary Material Application Aluminum; Brass; Bronze; Copper; Steel
Thread Direction Right Hand
Coolant Fed Non-Coolant Through
Extended Neck Yes
Material Grade Machining High Speed Steel
Measurement System Fractional Inch
Primary Material Application ISO Code N; P
Shank Dia 5/16 in
Shank Length 2-1/4 in
Square Size 0.2380 in
Standards USCTI Table 302A
Tap Chamfer Plug
Tap Style Extension
Tap Thread Size 5/16 in
Threads per Inch 16
UNSPSC 23153305
Country of Origin USA (subject to change)
Thread Standard UNF
Secondary Material Application Composite
Secondary Material Application ISO Code O
Spiral Direction Neutral
Class of Fit 2B
Thread Pitch 2.50mm
Extended Shank Yes
Tap Type Spiral Point

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