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Product Specifications:
| Item | Straight Flute Tap |
| 55% Thread Drill Size | I |
| 65% Thread Drill Size | 17/64" |
| 75% Thread Drill Size | F |
| Class Of Fit | Class 2B |
| Extended Neck | Yes |
| Measurement System | Fractional Inch |
| Number Of Flutes | 4 |
| Overall Length | 2 23/32" |
| Primary Material Application | Cast Iron |
| Primary Material Application Iso Code | K |
| Secondary Material Application | Hardened Steel, Steel |
| Secondary Material Application Iso Code | H, P |
| Shank Dia. | 5/16" |
| Shank Length | 1 19/32" |
| Shank Type - Machining | Straight |
| Spiral Direction | Neutral |
| Square Size | 0.238" |
| Standards | Uscti Table 302A |
| System Of Measurement | Imperial |
| Tap Chamfer | Semi Bottoming |
| Tap Finish | Black Oxide |
| Tap Length Standard | USCTI |
| Tap Material | High Speed Steel |
| Tap Shank Standard | USCTI |
| Tap Style | Straight Flute |
| Thread Direction | Right Hand |
| Thread Length | 11/16" |
| Thread Limit | H3 |
| Thread Limit / Class Of Fit | H3 / 2B |
| Thread Size | 5/16"-18 |
| Thread Standard | Coarse |
| Threads Per Inch | 18 |
Shipping Info:
| Ship weight (kg) | 0.03 |
| Ship height (cm) | 2.54 |
| Ship length (cm) | 8.99 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Product Variants
| Product | Model | Overall Length | Shank Dia. | Thread Standard | Primary Material Application | Secondary Material Application | Thread Length | Tap Finish | Thread Limit / Class Of Fit | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
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C27636 | 2 3/8" | 3/16" | Coarse | Cast Iron | Hardened Steel, Steel | 1/2" | Black Oxide | H3 / 2B | €34.35 | |
![]() |
C27637 | 2 3/8" | 3/16" | Fine | Cast Iron | Hardened Steel, Steel | 1/2" | Black Oxide | H3 / 2B | €36.84 | |
![]() |
C27660 | 3 3/8" | 23/64" | Coarse | Cast Iron | Hardened Steel, Steel | 15/16" | Black Oxide | H5, 2B | €74.97 | |
![]() |
C27646 | 3 3/8" | 23/64" | Coarse | Cast Iron | Hardened Steel, Steel | 15/16" | Black Oxide | H3 / 2B | €75.74 | |
![]() |
C27661 | 3 3/8" | 23/64" | Fine | Cast Iron | Hardened Steel, Steel | 15/16" | Black Oxide | H5, 2B | €76.62 | |
![]() |
C28022 | 2 1/2" | 1/4" | Coarse | Cast Iron, Hardened Steel | Steel | 5/8" | TiCN | H3 / 2B | €59.96 | |
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C27655 | 2 1/2" | 1/4" | Coarse | Cast Iron | Hardened Steel, Steel | 5/8" | Black Oxide | H5, 2B | €41.62 |
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CLEVELAND C27640 0 Straight Flute Tap, 5/16-18 Thread Size, 11/16 Inch Thread Length, 2 23/32 Inch Length
€46.79 /unit


