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Cleveland C64044 pipe tap, 1-1/4"-11.5 NPT, semi-bottoming, 5 flutes, bright uncoated high speed steel, right hand

Cleveland

Cleveland C64044 Pipe Tap 1-1/4"-11.5 NPT Semi-Bottoming 5 Flutes

SKU CH-KA5J-QXQ96

Cuts 1-1/4"-11.5 NPT threads in pipe and conduit with a five-flute high-speed steel semi-bottoming design

  • Product typeTaps
  • NPT threading for leak-resistant pipe connections
  • Semi-bottoming design threads close to blind-hole bottoms
  • Five flutes clear chips efficiently in deep cuts
  • High-speed steel construction resists wear in tough materials
  • 4844 inch drill size ensures accurate thread engagement

Cleveland C64044 Pipe Tap for 1-1/4 Inch NPT Threads

The Cleveland C64044 is a high-speed steel pipe tap designed to cut 1-1/4"-11.5 NPT threads in pipe and conduit. Its semi-bottoming chamfer and five-flute geometry suit maintenance and fabrication tasks where a through-hole is not available. The bright uncoated finish is standard for general-purpose threading in ferrous and non-ferrous materials.

Hand-Threading Thermals Noise and Power Draw

As a manual cutting tool, the tap generates negligible heat and noise during normal hand or machine tapping operations. No external power supply or pneumatic source is required to drive the tool itself. Cutting fluid applied by the operator manages temperature at the cutting edges and evacuates chips through the flutes.

Five Flutes Bright Finish and Drill Size Guidance

The five-flute design distributes cutting load across more teeth for smoother thread entry and reduced chatter in tough materials. A bright finish avoids coating buildup that can affect fit in tight-tolerance NPT assemblies. The specification lists a 75 percent thread drill size of 1.4844 inches to help the user select the correct tap drill for the application.

How it compares

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

Price $170.99
Pricier than about 90% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND
Product typeTaps

Questions about this item

How do I install the Cleveland C64044 pipe tap and which drill size prevents oversize threads?

Drill a 1.4844 in hole to the 75 percent thread depth, then run the tap straight with cutting fluid so the 5 flutes cut clean NPT threads without wandering.

When will the Cleveland C64044 tap need replacement and how do I tell?

Replace it when the 5 flutes show rounded crests or the semi-bottoming chamfer requires excessive torque to start a 1-1/4"-11.5 NPT thread in high-speed steel.

What limit appears first when tapping 1-1/4"-11.5 NPT holes continuously with this tool?

Chip packing in the 5 flutes builds heat fastest, dulling the high-speed steel cutting edges before the semi-bottoming chamfer reaches full thread depth.

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