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Product Specifications:
| Item | Straight Flute Tap |
| 55% Thread Drill Size | W |
| 65% Thread Drill Size | V |
| 75% Thread Drill Size | U |
| Class Of Fit | Class 2B-3B |
| Extended Neck | Yes |
| Measurement System | Fractional Inch |
| Number Of Flutes | 4 |
| Overall Length | 3 5/32" |
| Primary Material Application | Cast Iron, Hardened Steel |
| Primary Material Application Iso Code | H, K |
| Shank Dia. | 5/16" |
| Shank Length | 1 11/16" |
| Shank Type - Machining | Straight |
| Spiral Direction | Neutral |
| Square Size | 0.242" |
| Standards | Uscti Table 302A |
| System Of Measurement | Imperial |
| Tap Chamfer | Semi Bottoming |
| Tap Finish | Black Oxide |
| Tap Length Standard | USCTI |
| Tap Material | Cobalt |
| Tap Style | Straight Flute Hand |
| Thread Direction | Right Hand |
| Thread Length | 7/8" |
| Thread Limit | H5 |
| Thread Size | 7/16"-14 |
| Thread Standard | Coarse |
| Threads Per Inch | 14 |
Shipping Info:
| Ship height (cm) | 1.2 |
| Ship length (cm) | 10 |
| Ship width (cm) | 1.5 |
| Country of Origin | US |
Product Variants
| Product | Model | Overall Length | Shank Dia. | Thread Standard | Tap Material | Thread Length | Tap Finish | Tap Style | Thread Limit / Class Of Fit | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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330269 | 3 3/8" | 23/64" | Coarse | Cobalt | 15/16" | Black Oxide | Straight Flute Hand | H3 / 2B | €74.80 | |
![]() |
330283 | 3 3/8" | 23/64" | Coarse | Cobalt | 15/16" | Black Oxide | Straight Flute Hand | H5, 2B-3B | €74.45 | |
![]() |
330284 | 3 3/8" | 23/64" | Fine | Cobalt | 15/16" | Black Oxide | Straight Flute Hand | H5, 2B-3B | €74.77 | |
![]() |
330278 | 2 1/2" | 1/4" | Coarse | Cobalt | 5/8" | Black Oxide | Straight Flute Hand | H5, 2B-3B | €37.98 | |
![]() |
300216 | 2 1/2" | 1/4" | Coarse | Cobalt | 5/8" | TiCN | Straight Flute Hand | H3 / 2B | €63.15 | |
![]() |
330280 | 2 15/16" | 3/8" | Coarse | Cobalt | 3/4" | Black Oxide | Straight Flute Hand | H5, 2B-3B | €48.45 | |
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330279 | 2 23/32" | 5/16" | Coarse | Cobalt | 11/16" | Black Oxide | Straight Flute Hand | H5, 2B-3B | €46.96 |
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Contact us
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We're available Monday through Friday, from 07:30 until 17:00.
GREENFIELD THREADING 330281 HTHM Straight Flute Tap, 7/16-14 Thread Size, 7/8 Inch Thread Length, Semi-Bottom, Cobalt
€69.30 /unit


