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Small gold-coloured metal tap with fluted shaft and threaded tip

Greenfield Threading

Greenfield Threading 300526 Straight Flute Hand Tap #3-48 UNC Plug 3 Flutes HSS TiN

SKU CH-0FP6-1RP5E

A #3-48 UNC plug hand tap with three straight flutes, 1.81 in overall length and 0.5 in thread length, made from TiN-coated high-speed steel for right-hand threading

  • #3-48 UNC thread cuts precise internal threads
  • Plug chamfer starts easily in through-holes
  • High-speed steel with TiN coating resists wear
  • 81 in overall length fits standard holders
  • 5 in thread length matches 75 % drill depth

Greenfield Threading 300526 Hand Tap

The Greenfield Threading 300526 is a straight flute hand tap designed for cutting internal threads in metal. It suits machinists and maintenance technicians who need to create #3-48 UNC threads by hand or with a tap wrench. The plug chamfer allows easier starting in through-holes or blind holes with adequate depth.

Thermals noise and power draw

As a non-powered cutting tool, this tap generates no operational noise and draws no electrical power. Heat produced during threading depends on the workpiece material, cutting speed and lubrication used by the operator. Proper cutting fluid manages temperature at the cutting edges during use.

Build quality and connectors

The tap is manufactured from high speed steel with a titanium nitride coating for increased wear resistance and longer tool life. It features three flutes, a thread length of .5 in and an overall length of 1.81 in. The H2 thread limit targets a class 2B fit, and the recommended drill size for 75 percent thread engagement is 2.00 mm.

How it compares

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

Price $7.99
Cheaper than about 91% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameCHICAGO-LATROBE

Questions about this item

How do I install the 300526 straight-flute hand tap and what step is often missed?

Clamp the workpiece, drill a 2.00 mm hole for the 75 percent thread depth, apply cutting fluid, then start the tap square to the hole; the step most often missed is keeping the tap perfectly perpendicular while turning.

What maintenance or replacement will the 300526 tap need later?

The high-speed steel cutting edges with TiN coating will dull over time; when threads become rough or oversize, the tap must be replaced because hand taps cannot be economically resharpened.

What limit appears first when using the 300526 tap continuously?

Chip evacuation in the straight flutes becomes the limiting factor during sustained use; the 0.5 in thread length fills quickly, so frequent back-out to clear chips is required to avoid tap breakage.

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