Best Uncoated /Black Oxide Jobber Drill Bits of 2025

Harry Stack Avatar
Harry Stack
Last Updated: Jan 2, 2025

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Uncoated/Black Oxide Jobber Drill Bits are a popular choice for those who need to drill through a variety of materials. These bits are made from high-speed steel, which makes them durable and long-lasting. The uncoated version is perfect for drilling through softer materials like wood and plastics, while the black oxide-coated version is ideal for harder materials like metal. Both versions have a 135-degree split point design that ensures a precise and accurate start to the drilling process. These drill bits are available in a range of sizes, making them suitable for a wide variety of applications.

At a Glance: Our Top Picks

Chicago Latrobe 52541 HM18 HSS Jobber Length Drill Bit and Tap Set Cover #TOP 1
Chicago Latrobe 52541 HM18 HSS Jobber Length Drill Bit and Tap Set
ftb score rating icon 9.9
Precision Twist R56 Reduced Shank Drill Bit Cover #TOP 2
Precision Twist R56 Reduced Shank Drill Bit
ftb score rating icon 9.8
Drillco 1000A Series Reduced Shank Drill Bit Cover #TOP 3
Drillco 1000A Series Reduced Shank Drill Bit
ftb score rating icon 9.6

Top 5 Uncoated /Black Oxide Jobber Drill Bits

Chicago Latrobe 52541 HM18 HSS Jobber Length Drill Bit and Tap Set

52541
Black oxide
Chicago Latrobe 52541 HM18 HSS Jobber Length Drill Bit and Tap Set Cover
Chicago Latrobe 52541 HM18 High-Speed Steel Jobber Length Drill Bit and Tap Set with Metal Case, Black Oxide Drill Bits/Uncoated Taps, Metric, 18-piece, Metric Drill Bit Sizes, M2.5 to M12 Tap Sizes

This 18-piece set includes 9 jobber length drill bits and 9 plug-chamfer hand taps with metric sizes ranging from M2.5 to M12. The HSS construction ensures durability and wear resistance, while the black oxide finish on drill bits promotes chip and coolant flow on ferrous materials. The uncoated hand taps can be used on a range of materials, especially soft metals. With a 118-degree conventional point, these bits are suitable for a variety of drilling applications. Made in the USA, this set comes in a metal case for easy storage and transportation.

What We Like
Durable and wear-resistant HSS construction
Black oxide finish on drill bits promotes chip and coolant flow on ferrous materials
Uncoated hand taps can be used on a range of materials, especially soft metals
#TOP 2

Precision Twist R56 Reduced Shank Drill Bit

Precision Twist Drill
091442
21/32"
Precision Twist R56 Reduced Shank Drill Bit Cover
Precision Twist R56 High Speed Steel Reduced Shank Drill Bit, Uncoated (Bright) and Black Oxide Finish, 1/2" Reduced Shank, 118 Degree Conventional Point, 21/32"

The Precision Twist R56 Drill Bit is designed for versatility and convenience. Its half-inch round shank allows you to fit larger drills into smaller chucks, making it easier to tackle various tasks. The combination of black oxide and bright finishes enhances lubricity, resists corrosion, and ensures that the bit remains durable without chipping or flaking. With a standard jobber-length, this drill bit is suitable for a wide range of applications, allowing you to use it in many different projects. The 118-degree conventional point is perfect for general drilling, ensuring clean and effective holes every time.

What We Like
Versatile shank design
Corrosion-resistant finish
Common jobber length
Effective drilling angle
#TOP 3

Drillco 1000A Series Reduced Shank Drill Bit

Drillco
1000A135
35/64"
Drillco 1000A Series Reduced Shank Drill Bit Cover
Drillco 1000A Series High-Speed Steel Reduced Shank Drill Bit, Uncoated (Bright)/Black Oxide Finish, Round Shank, Spiral Flute, 118 Degree Conventional Point, 35/64" Size

The Drillco Reduced Shank Bit is designed for versatility and efficiency. Its smaller shank allows you to use it with a 1/2" drill chuck, making it easier to tackle various projects. Made from high-speed steel, this bit offers excellent hardness, ensuring it withstands wear and tear during use. The black oxide finish enhances durability and helps with chip and coolant flow, allowing for smoother drilling. This bit is ideal for working with low- to medium-tensile strength metals, giving you the reliability needed for your tasks.

What We Like
Compatible with 1/2" drill chucks
Durable high-speed steel
Black oxide finish for reduced wear
Efficient chip and coolant flow
#TOP 4

Drill America GLBCO 5/64" Cobalt Drill Bit

GLBCOX65/64
1 Count (Pack of 1)
Drill America GLBCO 5/64" Cobalt Drill Bit Cover
Drill America - GLBCOX65/64 5/64" x 6" Cobalt Aircraft Extension Drill Bit, GLBCO Series, 1 Count (Pack of 1)

The Drill America Cobalt Drill Bit is designed to tackle tough materials such as stainless steel, inconel, and titanium. Its 135° split point tip helps prevent the drill from slipping, ensuring precise drilling every time. With round shanks, this bit is compatible with various tool holding systems, providing versatility for your projects. The gold oxide finish offers a thinner surface treatment compared to black oxide, delivering similar performance to uncoated tools. This 6" drill bit is perfect for situations where extra length is needed to reach difficult areas.

What We Like
Effective for tough materials
Prevents slipping during use
Compatible with various tools
Thinner oxide surface treatment
Extra length for hard-to-reach areas
#TOP 5

Drill America GLBCO #7 Cobalt Drill Bit

GLBCOX67
1 Count (Pack of 1)
Drill America GLBCO #7 Cobalt Drill Bit Cover
Drill America - GLBCOX67 #7 x 6" Cobalt Aircraft Extension Drill Bit, GLBCO Series

The Drill America Cobalt Drill Bit is designed to tackle tough materials like stainless steel and titanium. Its 135° split point tip helps you drill accurately, preventing the bit from wandering off your mark. You’ll appreciate the round shank design, which allows you to use this bit with various tool holding systems, adding versatility to your toolbox. With a 6-inch length, this drill bit offers extra reach for deeper drilling tasks, making it a reliable choice for both professionals and DIY enthusiasts.

What We Like
Drills tough materials
Prevents drill walking
Versatile tool compatibility
Extra reach for deep drilling
Buying Guide Image

Frequently Asked Questions (FAQs)

1. Is black oxide good for drill bits?

Black Oxide Drill Bits – Basic and Inexpensive Black oxide bits last up to 50% longer than standard HSS bits. They offer superior durability and speed. Many pros find they get years of use from them and consider black oxide bits the best general-purpose drill bits you can buy.

2. Which drill bits are better titanium or black oxide?

Compared to titanium drill bits, both black oxide and cobalt drill bits are better. In addition to being non-corrosive, durable, and fast like titanium bits, cobalt and black oxide bits can be re-sharpened. While titanium drill bits have more or less the same uses as black oxide, the latter is much cheaper.

3. What is the difference between jobber and mechanics drill bits?

Jobber length drill bits are the most common and have a longer length compared to the diameter of the shaft. They are commonly used in softer materials such as wood, soft metals or composite. A mechanics length drill bit is a bit that has a shorter overall length, as well as a shorter flute length.

4. What is the difference between black oxide and gold oxide drill bits?

Black oxide bits have 50% longer life than standard high speed steel bits. Click here to see available sizes. Gold Oxide – Offers added speed and durability for general purpose drilling applications in wood, metal and plastic and drills 3x faster with speed helix. Click here to see available sizes.

Editor's Notes

During our uncoated /black oxide jobber drill bit research, we found 24 uncoated /black oxide jobber drill bit products and shortlisted 5 quality products. We collected and analyzed 2,475 customer reviews through our big data system to write the uncoated /black oxide jobber drill bits list. We found that most customers choose uncoated /black oxide jobber drill bits with an average price of $12.44.

The uncoated /black oxide jobber drill bits are available for purchase. We have researched hundreds of brands and picked the top brands of uncoated /black oxide jobber drill bits, including Chicago-Latrobe, Precision Twist Drill, Drillco, Drill America. The seller of top 1 product has received honest feedback from 385 consumers with an average rating of 4.7.

Written by
Harry Stack Avatar

Harry Stack owns a small hardware store, his career landed him a depth of knowledge in categories such as tools, equipment, machinery and hardware. In his spare time, he usually repairs furniture, safes and appliances, and he knows how to make simple repairs to plumbing or electrical fixtures. His hobbies also include woodworking and fishing.