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Cleveland straight flute hand tap 7/8"-14 taper high speed steel bright finish

Cleveland

Cleveland C54890 Straight Flute Hand Tap 7/8"-14 Taper

SKU CH-QW8B-0Y76P

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

  • Product 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.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $53.99
Pricier than about 69% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeTaps

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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