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Greenlee combo drill/tap bit 3/8-16NC 1/4 hex shank

Greenlee

Greenlee DTAP3/8-16 Combo Drill/Tap Bit 3/8-16NC 1/4" Hex

SKU CH-WRVS-9G2E9

Drills and taps 3/8-16 threads in material up to 10 gauge with a 1/4 hex shank for quick changes

  • Drill and tap in one step with split-point web-thinning design
  • Quick-change 1/4" hex shank fits impact drivers and drill chucks
  • Cuts 3/8-16NC threads in material up to 10GA thickness
  • Greenlee professional-grade tool built for electrician and maintenance work

Greenlee 3/8-16NC Combo Drill/Tap Bit

This new Greenlee combo bit drills and taps 3/8-16NC threads in a single pass, cutting cycle time for electricians running conduit or junction boxes. The 1/4-inch quick-change hex shank locks into impact drivers and drill chucks without a separate adapter. Split-point geometry with web thinning reduces walking and lowers thrust force on startup. Rated for material up to 10 gauge thickness.

Thread size decides fit

The 3/8-16NC designation sets the thread pitch and major diameter, so the bit only matches fasteners and holes made to that exact standard. If your project calls for a different thread count or diameter, this bit will not produce the correct threads. The 10-gauge material limit also means it is not suited for thicker steel plate or structural members. Choose a separate tap and drill set when the specification differs.

How it compares

Measured against everything we stock in Electrical Trade Tools & Kits, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 96% of the 5,006 comparable items (median $95.99).

Specifications

Product
Brand nameGREENLEE

Questions about this item

What does the 10GA material-thickness rating mean when I use this bit in a drill?

The 10GA rating shows the maximum sheet-metal thickness the drill/tap can handle in a single pass; thicker material will stall the tool or strip the threads.

How does the 1/4" quick-change hex shank limit the bit in practice?

The 1/4" hex fits standard quick-change chucks and impact drivers, but it cannot be used in larger 3/8" or 1/2" chucks without an adapter.

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