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Greenlee drill/tap bit 12-24 UNC high-speed steel

Greenlee

Greenlee DTAP12-24 Drill/Tap Bit 12-24 UNC

SKU CH-JS36-M69JT

Drills, taps and countersinks #12-24 UNC threads in high-speed steel

  • Product typeDies & Taps
  • Drill, tap and countersink in one pass
  • #12-24 UNC thread size for standard fasteners
  • High-speed steel construction resists wear
  • 2 1/4 in overall length fits tight spaces

Greenlee DTAP12-24 Drill/Tap Bit

This Greenlee drill/tap bit combines drilling, tapping and countersinking in a single high-speed steel tool. It cuts a #12-24 UNC thread for machine screws in metal, plastic or wood. The bit fits standard drill chucks and is suited for maintenance, assembly and fabrication tasks where a separate tap would slow the job down.

12-24 UNC thread capacity

The bit handles #12-24 UNC threads and stops there; it cannot produce larger or finer pitches. It runs out when the workpiece thickness exceeds the flute length or when the material hardness demands a dedicated tapping setup with lubrication and rigid holding.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $8.99
Cheaper than about 90% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameGreenlee Textron
Product typeDies & Taps

Questions about this item

Will the 12-24 UNC thread cut cleanly in the mild steel brackets I already have?

The bit is made from high-speed steel and drills, taps and countersinks in one pass, so it will produce a standard 12-24 UNC thread in mild steel without needing a separate tap.

How can I confirm the finished hole matches the 12-24 UNC specification after using the bit?

Run a 12-24 UNC bolt into the new hole; it should start easily and engage fully without binding, confirming the thread pitch and diameter are correct.

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