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Cleveland C54090 straight flute hand tap #2-56 UNC plug 3 flutes bright finish

Cleveland

Cleveland C54090 Straight Flute Hand Tap #2-56 UNC Plug 3 Flutes pneumatic accessory

SKU CH-8FBN-2CYR6

Cuts #2-56 UNC threads with a 1.75 in overall length and .44 in thread length using high-speed steel

  • #2-56 UNC thread cuts precise internal threads
  • Plug chamfer starts easily in through or blind holes
  • High-speed steel resists wear for longer tool life
  • Bright uncoated finish suits general-purpose tapping

Cleveland C54090 Hand Tap for #2-56 UNC Threads

This straight-flute hand tap cuts #2-56 UNC internal threads in a single pass. The plug chamfer starts easily in through-holes or blind holes with adequate clearance. High-speed steel construction handles general-purpose tapping in steel, aluminium and plastic. Machinists and maintenance technicians use it for precision thread repair and small-batch production.

Bright Uncoated Finish with H2 Thread Limit

The bright uncoated surface resists galling on softer materials while allowing easy inspection of flank wear. An H2 limit and 2B class of fit produce threads that meet standard gauge requirements. A thread length of .44 in and overall length of 1.75 in suit shallow-hole work. Three flutes evacuate chips efficiently in hand or pneumatic tapping. The 75 percent thread drill size of 1.73 mm prepares the correct pilot hole. Builders needing larger diameters or different pitch series must select another tap.

Highlights

  • #2-56 UNC thread cuts precise internal threads
  • Plug chamfer starts easily in through or blind holes
  • High-speed steel resists wear for longer tool life
  • Bright uncoated finish suits general-purpose tapping

Specifications

BrandCLEVELAND

Questions about this item

What thread standard does the #2-56 UNC tap follow?

The tap cuts Unified National Coarse threads to a class 2B fit with an H2 thread limit.

What drill size should I use before tapping with this tool?

Use a 1.73 mm drill to achieve the recommended 75 percent thread engagement.

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