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Cleveland straight-flute hand tap, bright uncoated finish, 7/8-9 UNC thread

Cleveland

Cleveland C54887 Straight Flute Hand Tap 7/8"-9UNC pneumatic accessory

SKU CH-E42P-HEA6N

A three-piece straight-flute tap set cuts 7/8"-9 UNC threads in high-speed steel with a bright finish

  • Product typeTaps
  • 7/8"-9 UNC thread size for precise tapping
  • High-speed steel construction resists wear during use
  • Bright uncoated finish suits general-purpose applications
  • Four flutes improve chip clearance in blind holes
  • Three-piece kit provides taper, plug and bottoming taps

Three-Piece Tap Kit for UNC Threads

This Cleveland C54887 kit provides three straight-flute hand taps for cutting 7/8"-9 UNC internal threads. The high-speed steel construction is bright and uncoated. Designed for right-hand thread direction, the set suits general-purpose threading tasks in maintenance or fabrication workshops.

Build Quality and Daily Use

Four flutes per tap give a balanced cutting action and help clear chips in through-holes or blind holes. The H4 thread limit targets a class 3B fit, while the 75 percent thread drill size of 19.50 mm guides hole preparation. Overall length of 4 11/16 in and thread length of 2 7/32 in allow access in typical hand-tapping setups.

Upgrade Path and When to Switch

The kit replaces worn or undersized taps that no longer hold a 3B tolerance. Moving to this set is worth it when existing tools produce loose threads or struggle with the 7/8"-9 UNC size. It is not suited for buyers who need machine-tapping geometries, coated tooling for abrasive alloys, or larger thread diameters.

How it compares

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

Price $154.99
Pricier than about 90% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeTaps

Questions about this item

What thread standard does the 7/8"-9UNC tap follow, and what class of fit does it produce?

The tap follows the UNC thread standard and produces a Class 3B fit for right-hand threads.

What are the overall length and thread length of this tap?

The overall length is 4 11/16 in and the thread length is 2 7/32 in.

Which drill size creates the recommended 75 percent thread engagement for this tap?

Use a 19.50 mm drill size to achieve 75 percent thread engagement before tapping.

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