Is this tap considered a NC (coarse thread) one?

Yes, it is the same thread as a outlet or switch screw.

Does klein or greenlee make one of these for 1/2" steel?

No, I think the thickness has to be under a quarter of an inch for these to work and even then you have to be careful not to put to much torque on them or they will snap off like a tap and then you’re really going to be “screwed” (pun intended), due to the hardness of the steel they are made from it will be impossible to drill it out.

Are these impact rated?

No, not really, it is to hard and brittle being made up of tap steel and will snap off using an impact drill. Even with a regular drill you have to be careful with the smaller sizes not to bind them or they will brake off. I have a small low torque slow speed electric screw driver from Bocsh I use for this purpose, it’s like a mini screw gun and works really well for this purpose.

Yes it will but not sure how effective it will be in wood

Klein Tools 32242 Drill Tap, 1/4-20

Product ID: 355007207

Details

Cutting angle string
6E+1 Degrees
Cutting diameter
6.35
Finish type
Uncoated
Material
High Speed
Shank type
Hex

🔩1/4-20 Thread Size

⚙️High-Speed Steel Precision

🛠️Up to 10 Gauge Metal Compatible

E£ 9012

Duties & taxes included

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Details

Cutting angle string
6E+1 Degrees
Cutting diameter
6.35
Finish type
Uncoated

Description

🔧 Tap into precision, power, and pro-level performance!

TRUSTED BY PROS - Klein Tools quality with a 4.6-star rating from over 1,200 satisfied users.
COMPACT LIGHTWEIGHT - Weighs just 5 grams with a sleek 13.7 cm design for easy handling and storage.
OPTIMIZED THREAD SIZE - Perfect 1/4-20 thread for reliable, professional-grade fastening.
VERSATILE METAL COMPATIBILITY - Effortlessly taps aluminum, brass, copper, mild steel, and plastic up to 10 gauge.
PRECISION ENGINEERED FOR DURABILITY - Crafted from high-speed steel for long-lasting performance on tough materials.

The Klein Tools 32242 Drill Tap (1/4-20) is a high-speed steel tool designed for precision threading in metals up to 10 gauge, including aluminum, brass, copper, and mild steel. Lightweight and compact, it delivers professional-grade durability and versatility, backed by strong customer approval.

Specifications

Asin	B019874QJQ
Date First Available	7 April 2016
Department	Unisex-Adult
Is Discontinued By Manufacturer	No
Item Model Number	32242
Manufacturer	KLEIN TOOLS
Product Dimensions	13.72 x 4.57 x 0.56 cm; 5 g

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