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Three bright uncoated steel hand taps in a set

Greenfield Threading

Greenfield Threading CHICAGO-LATROBE 174516 3pc HSS Tap Set M2-0.40 pneumatic accessory

SKU CH-631W-KEYW6

Three-piece HSS hand-tap set for M2 × 0.40 metric threads, covering taper, plug and bottoming operations

  • Metric M2 x 0.40 thread for fine-pitch fastening
  • High-speed steel construction resists wear in repeated use
  • Three-piece set covers taper, plug and bottoming taps
  • Bright uncoated finish suits general-purpose hand threading
  • 1-3/4 in overall length fits standard tap handles

Greenfield Threading 3pc HSS Tap Set M2-0.40

The Greenfield Threading CHICAGO-LATROBE 174516 set contains three high-speed steel hand taps for cutting M2 x 0.40 metric threads. It includes taper, plug, and bottoming styles to start, continue, and finish threads in through-holes or blind holes. Bright uncoated finish suits general-purpose threading in steel and non-ferrous metals.

Suited for metric M2 thread repair

Mechanics and hobbyists cutting new threads or restoring damaged ones in tight spaces will find the three-chamfer sequence covers the full depth. Users needing larger diameters, different pitch, or coated taps for high-volume production should look at other options.

M2 x 0.40 thread size

The taps conform to a 6H tolerance class with a D3 thread limit, ensuring standard fit for metric coarse threads. Right-hand cut with three flutes and a 7/16 inch thread length on a 1 3/4 inch overall body. This specification determines compatibility with the intended hole and fastener.

How it compares

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

Price $43.99
Pricier than about 64% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE

Questions about this item

How much heat or noise does the CHICAGO-LATROBE 174516 tap set generate during extended use?

The taps produce no heat or noise themselves; all power, vibration and sound come from the drill or tapping head driving them.

What tool holder or drive does the M2-0.40 tap need to fit my machine?

The taps have a standard square shank for hand-tap wrenches or a tapping chuck with a matching square drive.

Will the D3 class 6H threads work in older metric holes cut to looser tolerances?

D3 6H taps cut a standard 6H internal thread; existing holes must be drilled to the correct tap-drill diameter for that class of fit.

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