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

🔩Compatible with up to 10 gauge metal

⚙️Precision 1/4-20 threading

🛠️Multi-material use: aluminum, brass, copper, mild steel, plastic

€ 39.03

Duties & taxes included

In stock

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Details

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

Description

🛠️ Tap into precision, unlock your project’s potential!

UPGRADE YOUR TOOLKIT - Replace worn bits and experience the smooth, efficient tapping that pros swear by.
DURABLE KLEIN QUALITY - Built to last with trusted Klein Tools craftsmanship, your go-to for reliable tapping.
VERSATILE METAL MASTERY - Effortlessly taps aluminum, brass, copper, mild steel, and plastic—one tool, endless projects.
PRECISION THREADING POWER - Engineered for exact 1/4-20 threads, ensuring flawless fit every time.
HEAVY DUTY GAUGE COMPATIBILITY - Designed to work on metals up to 10 gauge thickness for professional-grade results.

The Klein Tools 32242 Drill Tap (1/4-20) is a durable, precision-engineered tool designed for threading up to 10 gauge metals including aluminum, brass, copper, mild steel, and plastic. Perfect for professionals seeking reliable, multi-material tapping performance in a compact, easy-to-use bit.

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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