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Small metal tap with fluted shaft and square drive end

Drill America

Drill America #00-90 HSS Plug Hand Tap

SKU CH-1Q5E-5PY8H

#00-90 HSS plug hand tap cuts threads in through holes for general machine or CNC tapping

  • Versatile for hand or powered tapping
  • HSS construction suits most materials
  • Plug style designed for through holes
  • Starts threads square to the workpiece
  • California Proposition 65 chemical warning applies

Drill America #00-90 HSS Plug Hand Tap

This #00-90 HSS plug hand tap from Drill America is designed for creating internal threads in through holes. It suits machinists, maintenance technicians and hobbyists who need a versatile tool for hand tapping or powered tapping operations across a wide range of materials.

Plug tap for through holes versus taper

The plug style is generally used for thru holes where the tap can pass completely through the workpiece. A taper tap starts the thread square with the workpiece, while a bottoming tap generates threads to the bottom of a blind hole. Choosing the plug style is worth it when the hole is open at both ends and a full thread depth is required without the lead-in length of a taper tap.

Limits of hand tapping with high-speed steel

High-speed steel offers good wear resistance for general-purpose tapping but will dull faster than carbide when used in abrasive or hardened materials. Hand tapping requires manual alignment and consistent pressure, which can lead to thread inaccuracies in deep holes or tough alloys. The tool carries a California Proposition 65 warning for chemicals known to cause cancer and reproductive harm.

Highlights

  • Versatile for hand or powered tapping
  • HSS construction suits most materials
  • Plug style designed for through holes
  • Starts threads square to the workpiece
  • California Proposition 65 chemical warning applies

Specifications

BrandDRILL AMERICA

Questions about this item

What drill size clears the #00-90 tap for through-hole tapping?

Use a drill that matches the #00-90 minor diameter; the plug style is designed for through holes.

How do you start the tap square to avoid cross-threading?

Apply steady pressure with a tap wrench, keeping the tool perpendicular to the workpiece face.

When should the tap be replaced?

Replace it when threads cut rough, oversized, or the flutes show visible wear or chipping.

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