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Westward straight flute hand tap, bright uncoated steel, 4 flutes, bottoming style

Westward

Westward 2LWN7 Straight Flute Hand Tap 1/2"-13 Bottoming 4 Flutes UNC

SKU CH-7G06-CNF8Z

Cuts internal UNC threads in a 1/2"-13 hole using four straight flutes and a bottoming chamfer

  • Product typeHole, Drill, Bore & Wire Gauges
  • Bottoming chamfer starts threads in blind holes
  • Straight flute design clears chips in through holes
  • High-speed steel resists wear during repeated threading
  • UNC 1/2"-13 pitch matches standard coarse threads
  • Right-hand cut suits conventional tapping operations

Thread-Cutting Tap for Maintenance

This Westward straight-flute hand tap cuts internal UNC threads in a 1/2"-13 hole. The bottoming chamfer reaches the bottom of blind holes where a taper or plug tap cannot. Four flutes provide chip clearance in general-purpose materials. High-speed steel construction resists wear during repetitive hand-threading tasks.

Replaces Worn or Undersized Taps

A fresh H5-limit tap restores thread accuracy when an old tap has dulled or produced loose threads. The jump is worth it when a fastener no longer holds torque in a repaired hole or when starting a new blind-hole job that demands full-depth engagement. Bright uncoated finish suits steel and non-ferrous workpieces without coating buildup.

Hand Installation With Standard Wrench

The square shank fits a conventional tap wrench for manual operation. Right-hand threads advance with clockwise rotation. Bottoming design requires the hole to be drilled to full thread depth before tapping. Common issues include tap breakage from misalignment, chip packing in deep blind holes, and undersized threads if the drill size is incorrect.

How it compares

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

Price $10.99
Cheaper than about 78% of the 2,474 comparable items (median $23.99).

Specifications

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

Questions about this item

What size tap drill do I need for this 1/2"-13 UNC tap?

The tap cuts 1/2"-13 UNC threads; select the matching drill size from a standard tap-drill chart for the material you are threading.

How do I start this bottoming tap without breaking it?

Start the hole with a taper or plug tap first, then use this bottoming tap to cut threads to the bottom of a blind hole.

When should I replace this high-speed steel tap?

Replace it when the flutes show wear, chips form on the cutting edges, or threads start coming out rough or oversized.

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