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Straight-flute hand tap, bright steel finish, four flutes, plug style

Westward

Westward 2LWJ6 Straight Flute Hand Tap 1/2"-13 Plug 4 Flutes UNC

SKU CH-4MQM-G0GBB

Cuts UNC threads in a 1/2"-13 hole using a four-flute high-speed steel plug tap

  • Product typeHole, Drill, Bore & Wire Gauges
  • Cuts internal threads in through-holes with 1/2"-13 UNC plug tap
  • Four straight flutes evacuate chips efficiently in general-purpose tapping
  • High-speed steel construction resists wear during repetitive threading operations
  • Bright uncoated finish suits a wide range of ferrous and non-ferrous materials
  • Right-hand H5 thread limit provides standard class-of-fit for common applications

Thread cutting tap for UNC holes

The Westward 2LWJ6 is a straight flute hand tap designed to cut unified coarse threads in a 1/2 inch diameter hole. It suits maintenance technicians and machinists who need to create new internal threads or repair damaged ones by hand.

H5 thread limit and plug chamfer

The tap conforms to an H5 thread limit and features a plug chamfer with four flutes. This geometry provides a moderate starting taper that guides the tool into the hole while the four flutes offer balanced chip clearance for general-purpose threading in through or blind holes.

High speed steel construction

Manufactured from high speed steel with a bright uncoated finish, the tap resists wear during manual threading operations. The right hand cutting direction matches standard UNC fasteners, and the overall length of 3 3/8 inches with a thread length of 1 21/32 inches fits standard tap wrenches.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $12.99
Cheaper than about 73% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameWestward
Product typeHole, Drill, Bore & Wire Gauges

Questions about this item

Will this 1/2"-13 UNC tap cut threads in a hole I drilled with older high-speed steel bits?

Yes, the tap is made from high-speed steel and cuts UNC threads, so it works with holes drilled by standard HSS bits of the correct diameter.

How can I verify the 1/2"-13 threads are cut to the H5 limit after tapping?

Check the finished threads with an H5-class UNC thread plug gauge; a go gauge should enter fully and a no-go gauge should not.

Does the box include a tap wrench or drill bit for the 1/2"-13 size?

The package contains only the straight-flute hand tap; a tap wrench and the correct drill bit must be purchased separately.

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