Best Letter Jobber Drill Bits of 2026
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Letter Jobber Drill Bits are an essential tool for any DIY enthusiast or professional tradesperson. These drill bits come in a wide range of sizes, making them perfect for drilling precision holes in a variety of materials such as wood, plastic, and metal. The bits are made from high-quality materials, ensuring they are durable and long-lasting. With their sharp, pointed tips, these drill bits can easily penetrate even the toughest materials, making them ideal for drilling through hard metals or tough materials. Whether you are working on a small DIY project or a large construction job, Letter Jobber Drill Bits are a must-have tool in your toolkit.
At a Glance: Our Top Picks
#TOP 1
9.8
#TOP 2
9.7
#TOP 3
9.5
Top 3 Letter Jobber Drill Bits
BonewrightBrand Holistic Drill Bit Gauge
The Bonewright Drill Bit Gauge is a versatile tool designed to help you quickly identify drill bits from various size families including fractional, number, letter, and metric. It covers a wide range of sizes, from tiny 1/32" bits up to letter size P, so you can easily find the exact bit you need. The sizes are arranged in perfect order, making it simple to spot the right drill bit without confusion. Plus, the gauge shows metric sizes alongside American equivalents, so you can quickly compare and substitute bits when necessary, saving you time and effort on your projects.
Century Drill & Tool 11606 Letter Gauge F Drill Bit
The Century F Drill Bit is made from high-quality U.S. AISI M2 molybdenum high-speed steel, which means it’s tough and durable for long-lasting use. It features a 135-degree split point that helps you start drilling precisely without slipping, making your work easier and more accurate. The bit is fully ground from solid billet blanks, ensuring a smooth and sharp cutting edge for efficient drilling. Additionally, it has a Rockwell hardness rating of C65 at the point, offering excellent strength, while the shank hardness at C34 provides good flexibility. This drill bit is a reliable choice for various drilling tasks.
Huot 11700 Drill Bit Index Set
The Huot Drill Bit Index is a handy set that keeps 115 jobber length drill bits organized and easy to find. It includes fractional sizes from 1/16" to 1/2" in small 1/64" steps, letter sizes A to Z, and wire gauge sizes #1 to #60, giving you a wide range of options for different projects. Each hole is labeled, so you can quickly identify and store your bits without any hassle. Made of durable steel with a protective epoxy finish and a snap-lock cover, this set is built to last and keeps your drill bits safe and secure while not in use.
Frequently Asked Questions (FAQs)
1. What are lettered drill bits used for?
Letter and numbered drill bits were developed to make up the gaps in between metric and fractional sizes. The most common use is for using taps. There will not be an exact match for fractional sizes but you can refer them to closest fractional bit that is larger than the numbered bit.
2. What is a jobber length bit?
A jobber drill bit has a long length compared to its diameter. The length of the flute is between 8-12 or 9-14 times the diameter of the drill, depending on the drill specifications. For example, a 1/2″ diameter jobber drill will be able to drill a 4-1/2″ deep hole because it is 9 times the diameter in length.
3. What are the 5 types of drill bits?
Drill bits are designed to drill holes in a variety of different common materials. These include different types of wood, metal, plastic, ceramic tile, porcelain and concrete.
4. What is a Jobber twist drill bit?
Jobber drill bits are straight shank drills suitable for general purpose applications. This category includes bright, treated, TiN coated drills to machine a variety of materials. Heavy duty-split point drills, high helix and para-flute jobber drills along with cobalt bits meet the needs of most machinists.
During our letter jobber drill bit research, we found 24 letter jobber drill bit products and shortlisted 3 quality products. We collected and analyzed 15,571 customer reviews through our big data system to write the letter jobber drill bits list. We found that most customers choose letter jobber drill bits with an average price of $10.66.
The letter jobber drill bits are available for purchase. We have researched hundreds of brands and picked the top brands of letter jobber drill bits, including BonewrightBrand, Century Drill & Tool, Huot. The seller of top 1 product has received honest feedback from 13 consumers with an average rating of 4.6.
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.