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Drill America 3/4"-40 HSS plug hand tap, silver metal finish

Drill America

Drill America 3/4"-40 HSS Plug Hand Tap

SKU CH-5DMY-HYDN6

Cuts 3/4"-40 threads in through holes using high-speed steel plug tap design

  • HSS construction resists wear during tapping
  • Plug style suits through-hole applications
  • 3/4"-40 thread size matches specific fastening needs
  • Versatile for hand or powered tapping operations
  • California Proposition 65 chemical warning applies

Application and purpose

The Drill America 3/4"-40 HSS plug hand tap cuts internal threads in through holes across a wide range of materials. It suits general machine tapping, CNC work and manual threading tasks where a plug-style chamfer is required.

Practical limits

The plug chamfer design makes this tap unsuitable for blind holes where threads must reach the bottom. Users must also observe the California Proposition 65 warning because the tool contains a chemical known to the state to cause cancer and birth defects or other reproductive harm.

Installation and common issues

Starting the tap square with the workpiece prevents cross-threading and premature wear. Applying steady pressure and proper lubrication reduces the risk of tap breakage, especially in harder materials. Misalignment and insufficient chip clearance are the most frequent causes of damaged threads or broken taps.

Highlights

  • HSS construction resists wear during tapping
  • Plug style suits through-hole applications
  • 3/4"-40 thread size matches specific fastening needs
  • Versatile for hand or powered tapping operations
  • California Proposition 65 chemical warning applies

Specifications

BrandDRILL AMERICA

Questions about this item

Should I pick the 3/4"-40 plug tap or a different style for my job?

Choose the plug style when you are threading through-holes; it starts the thread square and works well in most materials.

What does the 40 in 3/4"-40 mean once the tap is in the machine?

It indicates 40 threads per inch, giving a fine pitch suitable for precise adjustment in metal or plastic.

Does the HSS material and plug design limit the tapping speed or coolant type I can use?

High-speed steel handles standard cutting speeds and common coolants; the plug geometry clears chips effectively in through-holes.

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