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Cleveland spiral point tap #12-24 UNC cobalt black oxide 3 flutes

Cleveland

Cleveland 86212 #12-24 UNC spiral point tap 3 flutes

SKU CH-742A-4SNKH

A cobalt spiral point tap cutting #12-24 UNC threads with three flutes and a 4.45 mm drill size

  • #12-24 UNC spiral point tap cuts clean threads in through-holes
  • Cobalt steel with black oxide finish resists wear during repeated tapping
  • Three-flute design evacuates chips forward to prevent binding
  • 75 percent thread drill size 4.45 mm guides accurate hole preparation
  • Right-hand 2B class of fit meets standard thread tolerance requirements

Cleveland #12-24 UNC spiral point tap

The Cleveland 86212 is a spiral point tap designed for creating internal threads in through-holes. It features a #12-24 UNC thread size with a 2B class of fit and three flutes for efficient chip evacuation. The cobalt construction with black oxide finish provides durability for general-purpose threading tasks.

Suited for through-hole threading in metal

This tap suits machinists and maintenance technicians cutting new threads or cleaning existing ones in through-hole applications where chips can be pushed ahead of the tool. It is not suited for blind-hole work where chips must be pulled upward, nor for users requiring a taper or bottoming chamfer instead of the plug style provided.

Handles #12-24 UNC threads

The tap comfortably produces #12-24 UNC threads using a 4.45 mm drill size for 75 percent thread engagement. Its thread length of 1 1/16 in and overall length of 3 5/32 in define the reach available. It runs out when a different thread size, pitch, or class of fit is required, or when a blind-hole geometry demands a different flute configuration.

How it compares

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

Price $12.99
Cheaper than about 82% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCLEVELAND

Questions about this item

What size drill bit do I need before using this #12-24 UNC tap?

Use a 4.45 mm drill bit for 75 percent thread engagement before tapping.

Will this 3-flute cobalt tap cut threads in my existing steel workpieces?

Yes, the cobalt construction with black oxide finish handles general steel tapping tasks.

How do I verify the threads match the 2B class of fit after tapping?

Check with a #12-24 UNC 2B thread gauge; the go gauge should enter fully and the no-go should not.

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