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Product Specifications:
| Item | Straight Flute Tap |
| 55% Thread Drill Size | 5.7 mm |
| 65% Thread Drill Size | 7/32" |
| 75% Thread Drill Size | 5.45 mm |
| Class Of Fit | Class 2B |
| Extended Neck | Yes |
| Measurement System | Fractional Inch |
| No. Of Flutes | 4 |
| Overall Length | 2 1/2" |
| 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. | 1/4" |
| Shank Length | 1 1/2" |
| Shank Type-machining | Straight |
| Spiral Direction | Neutral |
| Square Size | 0.191" |
| 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 | 5/8" |
| Thread Limit | H3 |
| Thread Limit/class Of Fit | H3 / 2B |
| Thread Size | 1/4"-28 |
| Thread Standard | Fine |
| Threads Per Inch | 28 |
Shipping Info:
| Ship height (cm) | 2.54 |
| Ship length (cm) | 8.99 |
| Ship width (cm) | 2.54 |
| Country of Origin | US |
Product Variants
| Product | Model | Shank Dia. | Thread Standard | Primary Material Application | Primary Material Application Iso Code | Secondary Material Application | Secondary Material Application Iso Code | Thread Length | Square Size | Price | |
|---|---|---|---|---|---|---|---|---|---|---|---|
![]() |
C27636 | 3/16" | Coarse | Cast Iron | K | Hardened Steel, Steel | H, P | 1/2" | 0.152" | €31.22 | |
![]() |
C27637 | 3/16" | Fine | Cast Iron | K | Hardened Steel, Steel | H, P | 1/2" | 0.152" | €32.69 | |
![]() |
C27660 | 23/64" | Coarse | Cast Iron | K | Hardened Steel, Steel | H, P | 15/16" | 0.275" | €66.96 | |
![]() |
C27646 | 23/64" | Coarse | Cast Iron | K | Hardened Steel, Steel | H, P | 15/16" | 0.275" | €67.33 | |
![]() |
C27661 | 23/64" | Fine | Cast Iron | K | Hardened Steel, Steel | H, P | 15/16" | 0.275" | €67.33 | |
![]() |
C28022 | 1/4" | Coarse | Cast Iron, Hardened Steel | H, K | Steel | P | 5/8" | 0.191" | €50.30 | |
![]() |
C27655 | 1/4" | Coarse | Cast Iron | K | Hardened Steel, Steel | H, P | 5/8" | 0.191" | €36.23 |
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Contact us
Contact your account manager right away to get personal advice.
We're available Monday through Friday, from 07:30 until 17:00.
CLEVELAND C27639 Straight Flute Tap, 1/4-28 Thread Size, 5/8 Inch Thread Length, 2 1/2 Inch Length
€36.23 /unit


