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Cleveland C96121 spiral point tap 7/16-20 UNF cobalt 3 flutes black oxide finish

Cleveland

Cleveland C96121 Spiral Point Tap 7/16-20 UNF Cobalt 3 Flutes

SKU CH-7BN4-0EMDC

Cobalt spiral-point tap cuts 7/16-20 UNF threads in through-holes with three flutes for efficient chip ejection

  • Cobalt construction resists wear in tough materials
  • Spiral-point design pushes chips forward for cleaner threads
  • 3-flute geometry balances strength and chip clearance
  • 7/16-20 UNF sizing fits standard fine-thread applications
  • Black oxide finish adds corrosion protection and lubricity

Spiral Point Tap 7/16-20 UNF

The Cleveland C96121 is a spiral point tap designed for creating internal UNF threads in through holes. It suits machinists and maintenance technicians who need reliable thread cutting in steel or similar materials.

Cobalt construction with Black Oxide

Cobalt material and a Black Oxide finish provide heat resistance and reduced friction during normal tapping operations. The three-flute design helps evacuate chips forward, lowering torque and promoting smoother cutting action.

Plug chamfer for through-hole work

The plug chamfer style supports starting threads in through holes without bottoming concerns. Right-hand orientation and 2B class of fit match standard fastening requirements for 7/16-20 UNF applications.

How it compares

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

Price $25.99
Typical for this category: the median of 5,493 items is $27.99.

Specifications

Product
Brand nameCLEVELAND

Questions about this item

How do I start the 7/16-20 UNF spiral point tap in the 9.95 mm drilled hole without cross-threading?

Align the tap squarely with the hole axis, apply steady forward pressure while turning clockwise, and use cutting fluid; the spiral point pushes chips ahead so the plug chamfer engages cleanly.

When will the cobalt tap need replacement or re-sharpening?

Replace or re-sharpen when thread gauges show the 2B class of fit is exceeded, flank wear rounds the cutting edges, or the black oxide coating has worn off the flutes.

What limit appears first during sustained threading with this 3-flute cobalt tap?

Chip evacuation in deep holes becomes the limiting factor because the spiral point pushes chips forward and the 39/64 inch thread length leaves little room for chip clearance.

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