We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver steel hand tap with fluted cutting edges and square drive end

Drill America

Drill America 37/64"-28 HSS Plug Hand Tap

SKU CH-0MJG-RQGCY

A 37/64-inch high-speed steel plug tap cutting 28 threads per inch for through-hole threading in general machine or CNC use

  • HSS construction resists wear during threading
  • Plug style suits through-hole applications
  • 37/64"-28 thread size cuts precise internal threads
  • Versatile for hand or powered tapping operations
  • California Proposition 65 warning for chemical hazards

Drill America 37/64"-28 HSS Plug Hand Tap

This Drill America hand tap cuts 37/64"-28 threads in through holes using high-speed steel. It suits general machine tapping, CNC work, or manual threading across most common materials. The plug style starts the thread square with the workpiece for reliable engagement.

Thermals noise and power draw

Hand tapping produces negligible heat and no electrical noise during normal operation. Power draw depends entirely on the driving tool rather than the tap itself. No thermal management or power supply consideration applies to this cutting tool.

Build quality and connector implications

The high-speed steel construction resists wear in repetitive threading tasks. The 37/64"-28 plug geometry requires a matching drilled hole and compatible holder for straight alignment. California Proposition 65 warnings indicate chemical exposure risk during handling or machining.

How it compares

Measured against everything we stock in Garden Hoses & Pipe Tubing, at today’s prices. Recalculated every night.

Price $23.99
Typical for this category: the median of 973 items is $21.99.

Specifications

Product
Brand nameDRILL AMERICA

Questions about this item

How do I install the 37/64"-28 HSS plug hand tap correctly?

Use a tap wrench to turn the 37/64"-28 HSS plug tap into a pre-drilled hole of the correct size for 28 threads per inch. The step people get wrong is drilling the wrong hole diameter, which causes the tap to bind or produce loose threads.

What maintenance will the 37/64"-28 HSS plug hand tap need later?

The 37/64"-28 HSS plug tap is made of high-speed steel and has no moving parts. Keep it clean, dry, and lightly oiled to prevent rust. Replace it when the cutting edges become dull and no longer cut clean threads at 28 TPI.

What limit appears first when using the 37/64"-28 HSS plug hand tap continuously?

Under sustained use the cutting edges of the 37/64"-28 HSS plug tap dull first, increasing torque and producing rough threads. Heat buildup in the high-speed steel can also reduce hardness if cutting fluid is not used.

More in Garden Hoses & Pipe Tubing

Similar items