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Cleveland straight flute hand tap 3/4 inch 16 UNF bottoming 4.25 inch HSS bright finish

Cleveland

Cleveland C54848 Straight Flute Hand Tap 3/4"-16 UNF Bottoming 4.25in HSS Bright Right Hand H3 2B

SKU CH-6XNE-XB1KG

3/4"-16 UNF bottoming hand tap, HSS bright finish, 4.25in OAL, H3 2B fit

  • Product typeTaps
  • Straight flute design clears chips in through holes
  • 3/4"-16 UNF bottoming tap cuts full threads to hole bottom
  • High-speed steel construction resists wear during repeated threading
  • 25 inch overall length reaches deep workpieces
  • H3 limit with 2B class ensures precise thread fit

Cleveland C54848 Straight Flute Hand Tap

The Cleveland C54848 is a straight flute hand tap designed to cut internal threads in a through-hole or blind-hole application. It suits maintenance technicians and machinists who need to produce a 3/4"-16 UNF thread using a manual wrench or tap handle.

UNF thread standard and H3 class of fit

This tap follows the Unified National Fine standard with a 16 threads-per-inch pitch and a 2B class of fit. The H3 thread limit controls the pitch-diameter tolerance, so the finished thread meets the specified allowance for general-purpose fastening without additional adjustment.

Installation uses a 17.50 mm drill

A 17.50 mm drill creates the 75 percent thread depth required before tapping. The bottoming chamfer with a short lead demands careful alignment to avoid cross-threading, and the uncoated high-speed steel cutting edges require cutting fluid to prevent premature wear in harder materials.

How it compares

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

Price $39.99
Pricier than about 61% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeTaps

Questions about this item

Should I choose the H3 limit or a different thread limit for this 3/4"-16 UNF tap?

The H3 limit is the only thread limit offered on this Cleveland C54848 tap, so it is the one to select for a 3/4"-16 UNF bottoming job.

What does the 75 percent thread drill size mean when I am tapping a hole?

It means you should drill the hole with a 17.50 mm drill bit before using this tap to produce a 75 percent thread engagement.

How does the UNF standard affect the thread pitch on this 3/4"-16 tap?

UNF fixes the pitch at 16 threads per inch, so this tap will cut 16 threads per inch on a 3/4 inch diameter.

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