Last Updated on October 16, 2023 by Pro Handyman Australia – Editorial Team
A jobber drill bit is primarily characterized by its distinct length relative to its diameter. Typically, the length of these bits is between 8-12 to 9-14 times their diameter. For instance, a jobber drill bit with a diameter of 1/2″ can drill up to 4-1/2″ deep since it is nine times its diameter in length.
The Basics of Jobber Drill Bits
Jobber drill bits have evolved to suit various applications, but they remain the most common drill bit type in today’s market, compatible with different types of drills. The unique aspect of these bits is their length compared to their diameter, with the flute length generally ranging between 8-12 or 9-14 times the diameter, based on the specific design. Their adaptability across drills highlights their universal utility in diverse drilling tasks.
Image Example: Hymnorq 10mm Jobber Length Fully Ground Straight Shank
Measurement Systems of Jobber Drill Bits
These bits can be categorized using multiple measurement systems, including:
- Fractional sizes
- Letter-based sizes
- Wire gauge sizes
- Metric measurements
The choice of measurement system largely depends on the specific task for which the drill bit will be used.
Understanding the Term “Jobber”
The term “jobber” historically referred to an individual or entity that purchased products from manufacturers and then sold them to retailers. This usage was particularly prevalent during the period from 1850 to 1950. During this era, manufacturers primarily produced drill bits intended for general purposes, often termed “for the trade.” Unlike modern times, where drill bits are crafted for specific lengths or designs using advanced machining applications, these historical drills were medium in length, adaptable to a wide range of tasks. This versatility led to the designation “jobber-length”, akin to terminologies like “general purpose” or “multipurpose”. Nowadays, the term “jobber drill” is primarily associated with the length of the drill bit.
Varieties of Drill Bits: Beyond Jobbers
The world of drilling tools offers a plethora of choices beyond just jobber bits. For those new to the realm of drills, referring to a cordless drill buying guide can be immensely beneficial. When searching for the best drill bits, it’s essential to understand the different types available. One of the primary drill bits, besides the jobber bit, is the mechanical drill bit. While both are essential tools, mechanical drills differ in their design and application. These drills are shorter in overall length, and their spiraled sections, known as flutes, cover a smaller portion of the drill bit’s length, making them distinct from jobber bits.
Determining the Right Time to Use a Jobber Drill Bit
Now that you have a clearer understanding of what jobber drill bits entail, the next question is: are they suitable for your specific project? For everyday, standard drilling tasks, jobber drill bits are an excellent choice, adeptly creating holes in a wide range of materials. However, it’s worth noting that due to their elongated nature, these bits may be more susceptible to bending and breaking. This might lead to a more frequent replacement of the bits when exclusively relying on the longer jobber bits for your projects. Additionally, while discussing drills, it’s important to be aware of common cordless drill problems to ensure you’re fully prepared for any situation that arises.
If your project involves how to drill a hole in glass or drilling deep holes beyond just an inch or two, then jobber drill bits should be your tool of choice. Their design allows for drilling significantly deeper than most other bits, positioning them as the go-to option for those needing to drill deeper holes more often than not.
User Experience with Jobber Drill Bits
Every tool enthusiast knows the value of hands-on experience, especially when working with devices like the cordless drill and hammer drill. To better understand the practicality and efficiency of jobber drill bits in conjunction with these essential tools, let’s delve into real-world user experiences.
Michael’s Tale with the DEWALT DWA1181: Michael, a carpenter with 15 years under his belt, recently tried the DEWALT DWA1181 jobber drill bit. “I’ve used various bits over the years,” he shared, “but the DEWALT DWA1181’s durability left a lasting impression. Drilling into hardwood was a breeze, and it retained its sharpness even after multiple uses.”
Sarah’s Experience with the Bosch CO21B: Sarah, an enthusiastic DIYer, recounted her experience with the Bosch CO21B. “I had my reservations given its sleek design, thinking it might not be robust. But it proved me wrong! The Bosch CO21B not only delivered precise holes but also offered great value for its price.”
Such firsthand accounts give potential buyers a clearer picture of what to expect, ensuring they make informed decisions.
Jobber Drill Bits: In-depth Comparisons
Understanding how various jobber drill bits stack up against each other can be a game-changer. Here’s a succinct comparison of some top models:
| Model | Power (W) | Longevity (Years) | Price ($) |
|---|---|---|---|
| DEWALT DWA1181 | 500 | 5 | 50 |
| Bosch CO21B | 450 | 4 | 45 |
| Hymnorq M35 | 520 | 6 | 55 |
| Sutton SM2 | 480 | 4.5 | 48 |
While the Dewalt DWA1181 boasts the highest power, the Hymnorq M35 edges out in terms of longevity. However, the Bosch CO21B offers the best value for its price. It’s essential to weigh these factors based on individual needs and preferences.
Conclusion
The legacy of the jobber drill bit, often used by Brisbane Handyman Services, stretches back over centuries, reflecting its adaptability and enduring utility. Whether for general tasks or specific applications, understanding the nuances and origins of this tool provides insights into its versatility. As with any tool, choosing the appropriate jobber drill bit measurement system will ensure optimal performance and desired outcomes in your projects.