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Three-piece 11/16"-16 straight flute hand tap kit, high speed steel, bright finish

Cleveland

Cleveland C54820 Straight Flute Hand Tap 11/16"-16 4-Flute 3-Piece Kit pneumatic accessory

SKU CH-Q437-10CBA

Three-piece tap kit cuts 11/16"-16 UNS threads with four-flute high-speed steel taps in taper, plug, and bottoming styles

  • TypeTaps
  • High-speed steel construction resists wear
  • Three-piece kit provides taper, plug and bottoming taps
  • 11/16"-16 thread size fits UNS standard
  • Four flutes improve chip evacuation during threading
  • Bright uncoated finish suits general-purpose tapping

Three-Piece 11/16"-16 Tap Kit

This Cleveland C54820 kit supplies bottoming, plug and taper taps for cutting 11/16"-16 UNS threads. The 4-flute high-speed steel tools suit maintenance shops and fabricators who need to create or restore internal threads in steel or cast iron. Each tap is uncoated and ground to a 2B limit for a 3B class of fit.

Hand-Operated Cutting Thermals

The taps are designed for manual use with a suitable wrench, so no motor heat or electrical power draw is involved. Cutting fluid applied during operation keeps the tooling cool and reduces friction noise to the level of normal hand tapping. Workpiece material and lubrication choice determine actual temperature rise and sound.

Bright Uncoated High-Speed Steel

The bright finish ships without coating, allowing the user to apply a preferred lubricant or coating for specific materials. Three thread forms in one kit eliminate the need to source separate bottoming, plug and taper taps. Right-hand thread direction and 1 5/64-inch thread length suit standard through- and blind-hole depths.

Highlights

  • High-speed steel construction resists wear
  • Three-piece kit provides taper, plug and bottoming taps
  • 11/16"-16 thread size fits UNS standard
  • Four flutes improve chip evacuation during threading
  • Bright uncoated finish suits general-purpose tapping

Specifications

BrandCLEVELAND
TypeTaps

Questions about this item

How do I start the 11/16"-16 tap straight in a drilled hole and what step do people skip?

Begin with the taper tap from the 3-piece kit, apply cutting oil, and turn slowly with a tap wrench; the step most users skip is drilling the correct 5/8" clearance hole before threading.

When will the high-speed steel flutes need replacement under normal shop use?

Replace the taps when the 4-flute cutting edges no longer produce clean threads in mild steel, which typically occurs after several hundred holes depending on material hardness and lubrication.

What limit appears first when tapping deep holes continuously with the 1 5/64" thread length?

Chip packing in the 4 straight flutes becomes the limiting factor; back the tap out every half turn to clear swarf and prevent binding in the 4 1/32" overall length.

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