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Product Specifications:
| Item | Spiral Flute Tap |
| 55% Thread Drill Size | 5.7 mm |
| 65% Thread Drill Size | 7/32" |
| 75% Thread Drill Size | 5.45 mm |
| Coolant Fed | Non Coolant Through |
| Drill Bit Size | 0.2129", 0.2152", 0.2175", 0.2198", 0.2222" |
| Extended Neck | Yes |
| Features | The Original In Do It All In Spiral Flute Tap, Good For All Materials |
| Finish | Black Oxide |
| Grade | Grade 290 |
| Helix Angle | 45° |
| Material Grade-machining | Grade 290, Vanadium High Speed Steel |
| Measurement System | Fractional Inch |
| No. Of Flutes | 3 |
| Overall Length | 2 1/2" |
| Primary Material Application | Steel |
| Primary Material Application Iso Code | P |
| Secondary Material Application | Cast Iron, Hardened Steel, Stainless Steel |
| Secondary Material Application Iso Code | H, K, M, P |
| Shank Dia. | 1/4" |
| Shank Length | 1 1/2" |
| Shank Type-machining | Straight |
| Square Size | 0.19" |
| System Of Measurement | Imperial |
| Tap Chamfer | Modified Bottoming |
| Tap Finish | Black Oxide |
| Tap Material | High Speed Steel |
| Tap Shank Standard | ANSI |
| Tap Style | Spiral Flute |
| Tap Thread Size | 1/4"-28 |
| Tap Type | Spiral Flute |
| Thread Direction | Right Hand |
| Thread Length | 3/8" |
| Thread Limit | H5 |
| Thread Limit/class Of Fit | H5 |
| Thread Size | 1/4"-28 |
| Thread Standard | Fine |
| Threads Per Inch | 28 |
Shipping Info:
| Ship weight (kg) | 0.01 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 3.81 |
| Ship width (cm) | 2.54 |
| Country of Origin | BR |
Product Variants
| Product | Model | Thread Size | Thread Length | Overall Length | 75% Thread Drill Size | Tap Finish | Thread Limit | Thread Standard | Tap Material | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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2918401 | #10-24 | 5/16" | 2 11/32" | #25 | Black Oxide | H5 | Coarse | High Speed Steel | €32.71 | |
![]() |
2918400 | #10-24 | 5/16" | 2 11/32" | #25 | Bright | H5 | Coarse | High Speed Steel | €32.60 | |
![]() |
2913400 | #10-24 | 5/16" | 2 11/32" | #25 | Bright | H3 | Coarse | High Speed Steel | €33.17 | |
![]() |
2913401 | #10-24 | 5/16" | 2 11/32" | #25 | Black Oxide | H3 | Coarse | High Speed Steel | €34.75 | |
![]() |
2913408 | #10-24 | 5/16" | 2 11/32" | #25 | TiCN | H3 | Coarse | High Speed Steel | €47.23 | |
![]() |
2918408 | #10-24 | 5/16" | 2 11/32" | #25 | TiCN | H5 | Coarse | High Speed Steel | €37.33 | |
![]() |
2213401 | #10-24 | 5/16" | 2 3/4" | #25 | Black Oxide | 2B | Coarse | High Speed Steel | €35.70 |
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Contact us
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OSG 2940401 Spiral Flute Tap, 1/4-28 Thread Size, 3/8 Inch Thread Length, 2 1/2 Inch Length
€37.62 /unit





