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Small silver metal tap with three straight flutes and a plug chamfer

Greenfield Threading

Greenfield Threading 300286 Straight Flute Hand Tap Plug 3 Flutes pneumatic accessory

SKU CH-WJP7-NZDNT

A straight-flute hand tap cuts #2-56 UNC threads in a 1.75 in overall length with a .44 in thread length, made from TiN-coated high-speed steel for right-hand tapping

  • Straight flute design clears chips in through holes
  • Plug chamfer starts threads easily for hand tapping
  • High-speed steel with TiN coating resists wear
  • #2-56 UNC size matches precise threading needs
  • 3 flutes balance strength and chip evacuation

Thread Size #2-56 UNC

This CHICAGO-LATROBE straight flute hand tap creates internal threads in a #2-56 UNC size. The H2 thread limit produces a Class 2B fit for general-purpose applications. It is suited for maintenance technicians and hobbyists cutting new threads by hand in metal workpieces.

High-Speed Steel with TiN Coating

The high-speed steel body resists wear during manual threading operations. A titanium nitride coating reduces friction and extends tool life when cutting ferrous materials. The plug chamfer design helps start threads easily in through-holes or blind holes with sufficient clearance at the bottom.

Right-Hand Cutting Direction

Three flutes provide chip clearance and cutting stability during rotation. The 1.75-inch overall length and 0.44-inch thread length reach into standard hole depths. A 75 percent thread engagement requires a 1.73 mm drill size for proper hole preparation before tapping.

How it compares

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

Price $10.99
Cheaper than about 86% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE

Questions about this item

What is the thread limit on the H2-class tap?

The tap is manufactured to an H2 thread limit for a 2B class of fit.

How much heat does the TiN-coated high-speed steel generate during extended hand threading?

The TiN coating on the high-speed steel reduces friction and heat buildup during prolonged use.

Which drill bit size is required to prepare the hole for this #2-56 tap?

A 1.73 mm drill bit creates the correct 75 percent thread engagement for this tap.

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