13/32 in x 24 in High Speed Steel Extra Long Drill Bit - Extra Reach

Our review of the 13/32 in x 24 in High Speed Steel Extra Long Drill Bit focuses on one clear strength: reach. For anyone who needs to drill deep holes in iron or steel where a standard length bit falls short, this extra long, spiral-fluted bit delivers the clearance and chip evacuation needed to finish the job. It is a straightforward, general-purpose tool that prioritizes length, toughness and reliable chip removal over specialty coatings or exotic substrates, making it a useful choice for maintenance and production tasks where access is the primary concern.

Key Features

• Extra length: The 24 in flute length provides reach to access deep or hard-to-reach holes without resorting to extensions or custom setups.
• High-speed steel construction: The HSS material balances hardness and toughness for wear resistance in a broad range of iron and steel applications.
• Black oxide treatment: The surface treatment adds lubricity and helps retain coolant at the cutting edge to reduce heat and wear during longer cuts.
• Spiral flute design: Right-hand spiral flutes evacuate chips up and out of deep holes to reduce clogging and keep the cut cleaner.
• Round shank: The round shank works with a wide variety of toolholding systems so it can be used in many drills and chucks.
• Bright finish at the tip: The finished geometry supports consistent chip flow for production or maintenance use.

Who It's For

This bit is best for fabricators, maintenance techs and machinists who regularly drill deep holes in members made from iron or steel and need the extra length to reach recessed features or stack-ups of material. It is well suited to production runs where the same long reach is repeatedly required and for workshop repairs where access is limited.

Those working primarily in nonferrous metals, plastics, or needing coated, heat-resistant tooling for high-speed machining should look elsewhere; a specialty coated or carbide tool may be a better fit for extreme wear resistance or nonferrous-optimized performance.

Pros & Cons

Pros

• Extra long flute length gives real reach for deep holes without extensions.
• HSS construction provides a good balance of hardness and toughness for general steel work.
• Black oxide finish improves lubricity and helps keep coolant at the cutting edge.
• Round shank and spiral flutes make it versatile in a variety of drill chucks and setups.

Cons

• Durability reports are mixed for heavy drives; some users noted breakage under aggressive feeds or when misaligned.
• Not optimized for nonferrous specialty jobs or extremely high-speed applications where coated or carbide bits excel.

Specifications

Diameter	13/32 in
Overall Length	24 in
Material	High-speed steel (HSS)
Finish/Treatment	Black oxide
Shank Type	Round shank
Flute Type	Right-hand spiral flutes

Our Verdict

The 13/32 in x 24 in HSS extra long drill bit is a practical value for anyone who needs dependable reach for drilling in iron and steel. It pairs proven HSS toughness with a black oxide finish and spiral flutes that help with chip evacuation, making it a solid choice for maintenance and production tasks where access matters more than specialty coatings. Buyers who need extreme durability under aggressive feed rates should consider hardened or coated alternatives.

Frequently Asked Questions

Will this bit work in a standard drill chuck?
Yes, the round shank is compatible with most drill chucks and common toolholding systems.

Is this bit suitable for stainless steel?
It is designed for a broad range of iron and steel family materials, but for tough stainless work, slower speeds and proper coolant are recommended.

Does the black oxide make it longer lasting?
The black oxide adds lubricity and helps retain coolant at the cutting edge, which can reduce heat and wear, though overall life depends on feed, speed and workpiece conditions.