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Widia Gtd tap set 1/4-20 NC H3 high speed steel bright finish four flutes

Widia Gtd

Widia Gtd 14025 Tap Set 1/4-20 NC H3

SKU CH-ANN8-X1QKM

High-speed steel tap set cuts 1/4-20 UNC threads with H3 limit and four flutes

  • UNC 1/4-20 thread cuts standard coarse holes
  • H3 limit gives a precise class-of-fit tolerance
  • High-speed steel construction resists wear in steel
  • Four-flute design clears chips for smoother tapping
  • Bright uncoated finish suits general-purpose hand or machine use

Thread size and material

This Widia Gtd tap set cuts internal threads to a 1/4-20 NC standard using high-speed steel with a bright uncoated finish. The H3 thread limit and right-hand direction suit general-purpose threading tasks in maintenance or light production.

Hole size and thread depth

Verify that your drilled hole matches the 75 percent thread drill size of 5.11 mm before starting. The thread length is 1 in within an overall length of 2 1/2 in so the workpiece must accommodate that reach.

Flute count and coating

Four flutes provide chip evacuation in the uncoated bright finish without added surface treatments. No lubricants or holders are bundled so supply cutting fluid and a compatible tap wrench separately.

Highlights

  • UNC 1/4-20 thread cuts standard coarse holes
  • H3 limit gives a precise class-of-fit tolerance
  • High-speed steel construction resists wear in steel
  • Four-flute design clears chips for smoother tapping
  • Bright uncoated finish suits general-purpose hand or machine use

Specifications

BrandWIDIA

Questions about this item

Does the 14025 tap set come with the 5.11 mm drill bit or must I buy it separately?

The set includes the H3 UNC taps with four flutes and a 1 in thread length; the 5.11 mm drill bit for 75 percent thread engagement is not included and must be purchased separately.

Should I choose the H3 thread limit for a standard 1/4-20 UNC hole?

H3 is the standard tolerance class for general-purpose 1/4-20 UNC threading and suits most applications requiring a right-hand internal thread.

What does the 20 threads-per-inch figure mean when I cut threads in steel?

It produces a coarse UNC pitch with a 1 in thread length and 2 1/2 in overall length, giving strong engagement in typical steel thicknesses.

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