Cleveland
Cleveland C54890 Straight Flute Hand Tap 7/8"-14 Taper
Cuts 7/8"-14 UNF threads with a 4.69 in overall length, 2.22 in thread length, H4 limit and 75 percent thread drill size of 20.40 mm
- TypeTaps
- Precision threading with 7/8"-14 UNF taper tap
- High-speed steel construction for durable cutting performance
- 69 in overall length handles deep-hole applications
- 22 in thread length ensures accurate engagement
- 75% thread drill size 20.40 mm for proper hole preparation
Cleveland C54890 Straight Flute Hand Tap
This Cleveland C54890 is a straight flute hand tap designed for creating UNF threads with a 7/8"-14 pitch. It suits machinists and maintenance technicians who need to cut precise internal threads by hand in a workshop setting.
Check thread size and drill specification
Verify that the required thread is 7/8"-14 UNF with a Class 2B fit and H4 limit before ordering. The specified 75 percent thread drill size is 20.40 mm, so ensure your drill stock matches this dimension for correct thread engagement.
High-speed steel construction and taper lead
The tap is made from bright, uncoated high-speed steel with an overall length of 4.69 in and a thread length of 2.22 in. Its taper lead eases starting in the hole, while the right-hand straight flutes suit general-purpose through-hole or blind-hole tapping.
Highlights
- Precision threading with 7/8"-14 UNF taper tap
- High-speed steel construction for durable cutting performance
- 69 in overall length handles deep-hole applications
- 22 in thread length ensures accurate engagement
- 75% thread drill size 20.40 mm for proper hole preparation
Specifications
| Brand | CLEVELAND |
|---|---|
| Type | Taps |
Questions about this item
Does the C54890 tap come with a handle or wrench, or must I buy one separately?
The tap is sold as the cutting tool only; a tap wrench or T-handle to turn it is not included and must be purchased separately.
Should I choose the taper version or a different chamfer for starting threads in a blind hole?
This tap has a taper chamfer designed for through-holes or for starting threads; a plug or bottoming chamfer would be better suited for blind holes.
What does the 4.69 in overall length mean when the tap is mounted in a wrench?
The 4.69 in overall length is the total tool length from tip to shank end, giving you the reach and leverage available when the tap is secured in a wrench.
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