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Set of three #10-24 UNC taps in metal case

Greenfield Threading

Greenfield Threading CHICAGO-LATROBE 174508 Tap Set #10-24 UNC pneumatic accessory

SKU CH-35X1-DWR3R

Creates #10-24 UNC threads with bottoming, plug and taper taps in high-speed steel TiN coating

  • #10-24 UNC thread cuts standard coarse threads
  • High-speed steel with TiN coating resists wear
  • Bottoming, plug and taper taps cover all depths
  • Four flutes evacuate chips efficiently
  • Right-hand cut matches common fastener direction

CHICAGO-LATROBE 174508 Tap Set for #10-24 UNC

This Greenfield Threading accessory provides three high-speed steel taps for cutting #10-24 UNC internal threads. The set includes taper, plug and bottoming styles to handle through-holes and blind holes in a single kit. It suits maintenance technicians and metalworkers who need a complete threading solution for this specific size.

High-speed steel construction with TiN coating

The high-speed steel substrate resists wear during repeated cutting cycles in steel and non-ferrous metals. A titanium nitride coating reduces friction and heat buildup at the cutting edges. Four flutes on each tap promote efficient chip evacuation and smoother thread finishes during normal hand or machine tapping operations.

Three tap styles cover full threading workflow

Taper taps start threads easily in unthreaded holes, plug taps continue cutting to depth, and bottoming taps finish threads close to the bottom of blind holes. Having all three styles in one set eliminates the need to source individual taps separately. The right-hand thread direction and Class 3B fit align with standard UNC fastening requirements.

How it compares

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

Price $18.99
Cheaper than about 66% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE

Questions about this item

How do I install the CHICAGO-LATROBE 174508 tap into a pneumatic tool holder, and what step is commonly missed?

Secure the 2 3/8 in overall length shank firmly in the chuck; the step often missed is starting with the taper tap to align the #10-24 UNC threads before switching to the plug or bottoming tap.

What maintenance will the high-speed steel TiN-coated taps need during their service life?

Clear chips from the 4 flutes after each hole, apply cutting fluid to reduce wear on the TiN coating, and inspect the H3 thread limit edges for rounding before reusing.

Which limit appears first when tapping deep holes continuously with this set?

The 7/8 in thread length restricts maximum hole depth in a single pass, so deeper #10-24 UNC threads require multiple setups or a longer tap.

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