Best Craftsman Jobber Drill Bits in 2026

Understanding Jobber Geometry and Application

The term 'jobber' refers to a specific standard of drill bit length and diameter. Unlike extra-long bits designed for deep bores or stubby bits for tight spaces, jobber bits are the standard medium-length bits used for most drilling tasks. When selecting a set or individual bits, pay close attention to the flute design. The flutes are the grooves that spiral up the bit to eject debris. For wood, you want sharp, clean flutes that prevent clogging. For metal, you want flutes designed to clear chips efficiently to prevent overheating. If you are working with a high-speed drill, the geometry of the tip—specifically the point angle—will dictate how much the bit 'walks' across the surface before it bites. A standard 118-degree point angle is common for general purposes, but if you are drilling into harder metals, you might look for bits with a more aggressive 135-degree split point to reduce the need for a pilot hole.

Material Composition: HSS vs. Cobalt

One of the most critical decision factors is the material the bit is made from. Most standard Craftsman jobber bits are crafted from High-Speed Steel (HSS). HSS is excellent for drilling through wood, plastic, and soft metals like aluminum. It is cost-effective and stays sharp through moderate use. However, if your projects frequently involve stainless steel or harder alloys, you should upgrade to Cobalt-infused bits. Cobalt bits are much harder and more resistant to the heat generated by friction. While they are more expensive and can be more brittle if you apply too much lateral pressure, they are the only way to ensure your bits don't dull instantly when hitting tough metal. For the average homeowner, a high-quality HSS set is usually sufficient, but a few dedicated Cobalt bits in your kit can save you significant frustration during metalwork.

Coating and Heat Resistance

Beyond the base metal, the coating on a drill bit plays a massive role in its longevity. Many jobber bits come with specialized coatings such as Titanium Nitride (TiN). This gold-colored coating increases surface hardness and reduces friction, which helps the bit run cooler. A cooler bit means a longer lifespan and a cleaner hole. When browsing, look for bits that mention specialized surface treatments. These are particularly helpful when you are drilling at higher RPMs, as they help dissipate the thermal energy that typically causes steel to soften and lose its edge.

Set Composition and Versatility

Finally, consider how you intend to use these bits. Buying a complete set is often more economical than purchasing individual bits, especially if you are starting a new toolkit. A well-rounded jobber set should cover the most common diameters used in household repairs—typically ranging from 1/16 inch to 1/2 inch. Check the case design as well. A sturdy, organized case is vital for preventing the bits from getting lost or damaged in your toolbox. If you find yourself frequently drilling through various materials, look for sets that specifically mention 'multi-material' compatibility to ensure you have the right tool for every unexpected task.