Greenfield Threading
Greenfield Threading 300286 Straight Flute Hand Tap Plug 3 Flutes pneumatic accessory
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.
Highlights
- 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
Specifications
| Brand | CHICAGO-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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