Drill/Tap Kit for Metal One-Step Drilling and Tapping - Fast Results

In this review the Greenlee Drill/Tap Kit proves to be a practical time-saver for tradespeople who need to drill, tap, and deburr holes quickly. The single biggest reason to buy is its one-step workflow that lets a power drill complete drilling, tapping, and countersinking in one pass, which noticeably reduces job time compared with separate operations. The reviewer found it especially useful on thin-gauge metals and nonferrous materials, delivering consistent threads while the back-tapered design helped avoid thread damage when users pushed the tool a bit too far.

Key Features

• One-step drill/tap: Combines drilling, tapping, and deburring/countersinking in a single operation to reduce cycle time and manual labor.
• Material versatility: Works on aluminum, brass, copper, plastic and mild steel, making it useful for a variety of shop and field tasks.
• Back-tapered design: The tapered geometry protects threads from damage caused by over-drilling, improving finished thread quality.
• Hex shank connection: A sturdy hex shank gives a secure fit in the drill chuck or quick change adaptor for reliable performance under load.
• Hardened HSS construction: Made from high-speed steel for better wear resistance and longer life than typical carbon-steel bits in demanding use.
• Quick change adaptor and case: Includes an adaptor for faster bit swaps and a rugged carrying case to keep the set organized on the job.

Who It's For

The kit is aimed at plumbers, electricians, cabinet makers and maintenance technicians who frequently tap thin metal panels or install threaded inserts and need to speed up repetitive hole work. It is especially handy for control cabinet work, HVAC panels, and light fabrication tasks where multiple holes and threads are required in quick succession.

Those who regularly cut very thick steel, or who require industry-specific thread forms or sizes outside the 6-32 to 1/4-20 range should look elsewhere for specialized tooling. Users who need absolute maximum longevity under extreme production loads may consider dedicated machine taps and drills for higher-volume shops.

Pros & Cons

Pros

• Reduces total cycle time by combining drilling, tapping and deburring into a single step.
• Good versatility across common nonferrous metals and plastics, increasing its usefulness on many jobs.
• Durable HSS construction and a solid hex shank provide dependable performance and longer life than carbon-steel alternatives.
• Includes a quick change adaptor and a carrying case for better portability and faster bit changes.

Cons

• Some users report occasional breakage of bits under heavy use, so care is needed when pushing beyond recommended material thickness.
• Limited to the included thread sizes (6-32 to 1/4-20), so it is not a full replacement for larger or metric tap sets.

Specifications

Product type	One-step drill/tap kit
Included sizes	6-32 to 1/4-20
Materials suited	Aluminum, brass, copper, plastic, mild steel
Construction	Hardened high-speed steel
Shank style	Hex shank with quick change adaptor
Case	Rugged plastic carrying case

Our Verdict

The Greenlee Drill/Tap Kit is a solid value for technicians and contractors who need fast, repeatable holes and threads in thin-to-moderate materials. Its one-step approach and hardened HSS bits save time and reduce tool changes, while the back-tapered design helps protect threads during aggressive drilling. For tradespeople doing panel work or light fabrication, it is a worthwhile addition to the toolbox, though high-volume shops may prefer separate production taps for maximum durability.

Frequently Asked Questions

Can this kit tap steel?
Yes, it is suitable for mild steel and other softer metals, but care is required on thicker or harder steels to avoid bit stress.

Does it include a quick change adaptor?
Yes, the kit includes a quick change adaptor and a rugged plastic case for faster bit swaps and transport.

What sizes are covered?
The set covers common thread sizes from 6-32 up to 1/4-20, suitable for many electrical and control cabinet applications.