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Cleveland straight-flute hand tap, bright steel finish, 1/2"-20 UNF plug, four flutes, left-hand thread

Cleveland

Cleveland C60812 Straight Flute Hand Tap 1/2"-20 Plug 4 Flutes UNF pneumatic accessory

SKU CH-HH5K-7AVEE

Straight-flute hand tap cuts 1/2"-20 UNF threads with a four-flute plug design in high-speed steel

  • TypeTaps
  • Straight-flute design clears chips in through-holes
  • 1/2"-20 UNF plug tap cuts standard fine threads
  • Four flutes give smooth cutting and longer life
  • High-speed steel body resists wear in repeated use
  • H3 limit matches Class 2B fit for reliable assembly

Cleveland C60812 Straight Flute Hand Tap

This Cleveland C60812 is a straight flute hand tap designed for creating UNF threads in a workshop or maintenance setting. It suits machinists and technicians who need to cut precise internal threads by hand or with a tapping head. The tool is not for users who require a spiral point or spiral flute tap for through-hole chip evacuation.

Thermals noise and power draw in normal use

The high speed steel construction with a bright uncoated finish provides standard wear resistance during typical hand tapping operations. No external power source or pneumatic supply is needed for this accessory, so there is no operational noise or electrical draw to consider. Heat generation remains low with proper cutting fluid and manual feed rates.

Behaviour under sustained load

Under repeated use the four flute design and H3 thread limit maintain a class 2B fit across multiple holes. The left hand thread orientation and 15/16 inch thread length support consistent engagement in deeper holes. The 75 percent thread drill size of 11.00 mm helps ensure accurate thread formation throughout extended production runs.

Highlights

  • Straight-flute design clears chips in through-holes
  • 1/2"-20 UNF plug tap cuts standard fine threads
  • Four flutes give smooth cutting and longer life
  • High-speed steel body resists wear in repeated use
  • H3 limit matches Class 2B fit for reliable assembly

Specifications

BrandCLEVELAND
TypeTaps

Questions about this item

How do I install this 1/2"-20 UNF plug tap and which drill size avoids oversize threads?

Drill the hole with an 11.00 mm bit for 75 percent thread engagement, then run the tap straight using a tap wrench; the step most often missed is keeping the tap perpendicular so the H3 limit threads cut true to 2B fit.

When will this high-speed steel tap need replacement and what wear shows first?

The bright uncoated flutes dull first; replace the tap when the 15/16 in cutting length no longer produces clean threads or when chip evacuation slows in the four straight flutes.

What limit appears first during sustained hand tapping in steel?

The H3 thread limit and 2B class of fit are reached quickly if the tap drifts off-centre; the 3 3/8 in overall length gives no room for misalignment, so thread gauge failure is the first hard stop.

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