Taps, high carbon steel, 1/4-32 thread
This special thread is used almost exclusively for the 1/4-32 White Lightnin' touch hole liners, where fine threads allow a larger inside cavity. It is also used to refresh the threads of older Numrich Arms underhammer rifles, and Hopkins & Allen percussion longrifles. Our special nipples with long shanks for underhammer rifles are also threaded 1/4-32.

Never use high speed steel (HSS) taps for gunsmithing. High speed steel is perfect for a drill bit, but a poor choice for a gunsmith's tap. If broken, it is difficult to remove. Our high carbon steel taps are hard and sharp. If broken they are easily removed with a drift punch.

Plug taps have three to five threads chamfered, to cut threads in a through hole, or to start threads in a blind hole, closed at the bottom.

Tap Drills are smaller in diameter than the screw shaft to leave enough metal to cut threads.

Tap Drill: for 1/4-32 thread, use fractional Drill-7/32
Track's Catalog 18,
432 pages, full color,
filled with Exact Full Size Photos
of most gun parts.
Track's Catalog 18, 432 pages, full color, filled with Exact Full Size Photos of most gun parts.
Part Number: CATALOG-18
Availability: In Stock
Price: $10.00
Order Quantity:
drill bit, HSS, 7/32", .2188" diameter, tap drill for 1/4-32 thread
drill bit, HSS, 7/32", .2188" diameter, tap drill for 1/4-32 thread
Part Number: DRILL-7/32
Availability: In Stock
Price: $3.99
Order Quantity:
Tap, high carbon steel, 1/4-32 thread, plug tap

Use 7/32" tap drill.
Tap, high carbon steel, 1/4-32 thread, plug tap Use 7/32" tap drill.
Part Number: TAP-1/4-32-P
Availability: In Stock
Price: $16.99
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Tap handle, accepts 1/4" to 1/2" diameter taps
Tap handle, accepts 1/4" to 1/2" diameter taps
Part Number: TAP-W-14
Availability: In Stock
Price: $11.99
Order Quantity:
 
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Elk River, MN 55330-1773

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