Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set is a 29-piece drill bit set built around standard jobber-length drills and a 135-degree split point. It is part of Norseman’s Ultra Dex line and uses premium high speed steel with a special hi-molybdenum tool steel construction and gold oxide finish. For workshops, maintenance tasks, and general drilling work, that combination places the focus on accuracy, standard sizing, and everyday utility rather than specialty one-off bits.
Quick Overview
This set covers sizes from 1/16 inch through 1/2 inch in 64ths, which gives it a broad range for common drilling tasks. The 135-degree split point is a key detail because it is intended to help the bit start more cleanly than a more conventional point shape. The set also uses precision ground points, flutes, body, clearance, and drill diameter, which speaks to careful manufacturing rather than a general-purpose bulk assortment.
| Brand | Norseman |
|---|---|
| Product Type | 29-piece jobber drill bit set |
| Series | Ultra Dex |
| Point Angle | 135-degree split point |
| Size Range | 1/16 inch to 1/2 inch by 64ths |
| Material | Premium high speed steel, special hi-molybdenum tool steel |
| Finish | Gold oxide |
| Package Size | 29 pieces |
What This Drill Set Is
The Norseman 44170 set is a standard drill bit assortment intended for users who want multiple common fractional sizes in one package. Jobber-length bits are widely used in hand drills, drill presses, and similar drilling setups because they provide a familiar all-purpose length for routine work. In this set, the focus is on a broad size range and a point design that supports cleaner starting on material surfaces.
The Ultra Dex designation, the heavy duty NAS 907B reference, and the precision-ground construction point to a more specialized drill set than a basic homeowner kit. That makes it relevant for people who care about size consistency and bit geometry, especially when they use drill bits regularly in a shop or maintenance environment.
Key Features That Matter
135-degree split point
The 135-degree split point is one of the most important features in this set. In practical use, split-point drill bits are commonly chosen because they can help the bit begin cutting with less wandering on the surface. That matters when you want better control at the start of a hole, particularly on metal and other hard materials where a bit can skate before it bites.
Fractional sizing from 1/16 to 1/2 inch
The set includes sizes from 1/16 inch through 1/2 inch by 64ths. This gives a useful spread of sizes for drilling pilot holes, clearance holes, and progressively larger openings in everyday shop work. Having closely spaced fractional sizes can help when a project needs a specific hole diameter rather than an approximate fit.
Premium high speed steel and hi-molybdenum tool steel
High speed steel is a common drill bit material used for general drilling applications, and the hi-molybdenum tool steel description adds a more specific material detail for this set. For readers comparing drill sets, the practical point is that the material choice is part of what determines how the bit is meant to be used and how it fits into a more demanding tool kit.
Precision ground geometry
The point, flutes, body, clearance, and drill diameter are all precision ground. In plain terms, that means multiple parts of the bit have been carefully shaped rather than left to a rougher finish. For everyday use, this kind of construction is relevant because the bit geometry affects how the bit starts, clears chips, and maintains its intended size.
Gold oxide finish
The gold oxide finish is a visible surface treatment on the bits. Finishes like this are often used on drill bits to give them a distinct look and surface character. The key practical detail here is the finish itself, not a performance promise. If finish matters to you, it is worth noting that this set uses a gold oxide appearance rather than a black oxide or bare steel look.
How the Size Range Can Be Used
A 29-piece fractional set like this is useful when a project calls for a mix of small, medium, and larger drill sizes. Smaller bits are commonly used for pilot holes or delicate drilling tasks, while larger fractional sizes may be used for fastener clearance, hardware installation, or general fabrication work. Because the set runs from 1/16 inch through 1/2 inch by 64ths, it offers more size control than a very small starter set.
That said, the ideal bit size still depends on the project. Users should match the hole size to the fastener, material, and drilling application rather than choosing a bit only by visual estimate. For work that depends on close fit, the fractional increments in this set are particularly relevant.
Common Uses
This type of drill bit set is commonly used in:
- general workshop drilling
- home maintenance tasks
- metalworking projects
- woodworking tasks that call for standard twist drills
- mechanical repair and fabrication work
- drill press or hand drill setups
The set is not limited to one trade, but its construction details make it especially relevant where accurate bit sizing and controlled starts matter. If a task involves repeated drilling across different diameters, a set with closely spaced fractional sizes can reduce the need to improvise with the wrong bit.
Design and Handling Notes
Because these are jobber-length bits, they fit the familiar general-purpose profile many users expect in a drill set. That makes them practical for storage in a standard bit case and for use in routine drilling setups. The reduced emphasis here is on specialized geometry like extra-short or extra-long reach, and more on broad everyday utility.
The precision ground flutes and body are important from a usability standpoint because the flutes are responsible for clearing material as the hole is cut. When chip clearance is shaped carefully, it can support smoother drilling in ordinary use. Still, material type, drill speed, and proper technique all remain important, so the bit itself should be matched to the job rather than assumed to solve every drilling issue.
Who This Set May Be For
This Norseman drill bit set may appeal to people who want a more structured range of fractional sizes than a basic mixed kit provides. It may be suitable for:
- DIY users who need a reliable size range for common tasks
- workshop users who prefer matching bits in measured increments
- maintenance crews that use standard drill sizes regularly
- users who want a 135-degree split point for better hole starting control
It is also a sensible format for anyone replacing individual worn bits with a coordinated set. Since the pieces follow one series and one point style, the set keeps drilling behavior more consistent across sizes than a mismatched assortment.
Things to Consider Before Choosing It
Before selecting this set, it helps to think about the materials you drill most often and the type of drill you use. Jobber-length bits are versatile, but they are still general-purpose twist bits. If your work involves unusually deep holes, specialized materials, or a need for nonstandard shank designs, you may need a different type of bit.
It is also worth checking whether you need fractional sizes only or a combination of fractional, numbered, or lettered drills. This set focuses on fractional sizes from 1/16 to 1/2 inch, so it is well matched to projects that use those measurements specifically.
If bit storage and organization matter, a 29-piece set can be convenient because it groups a broad size range in one place. For people who already own some sizes individually, it may be useful to compare the set contents against the bits already in the shop to avoid duplication.
For the latest product information and specifications, view the current product listing.
Frequently Asked Questions
What does 135-degree split point mean?
It refers to the drill point shape. In practical use, this style is commonly chosen to help the bit start drilling with less wandering at the surface.
What sizes are included in the set?
The set includes 29 fractional sizes from 1/16 inch through 1/2 inch by 64ths.
What kind of material is used?
The set uses premium high speed steel and special hi-molybdenum tool steel, with a gold oxide finish.
What is a jobber drill bit set used for?
Jobber drill bits are general-purpose twist drills commonly used for everyday drilling in shops, maintenance work, construction-related tasks, and DIY projects.
Is this a reduced shank set?
No. The product information for this set describes it as a jobber-length set, while the reduced-shank version is a different Norseman set.
Final Thoughts
The Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set is a 29-piece fractional drill bit assortment built around a 135-degree split point, precision-ground geometry, and premium high speed steel construction. Its main appeal is straightforward: a wide fractional size range, a familiar jobber-length format, and features aimed at controlled, repeatable drilling in everyday shop use.
For buyers comparing drill bit sets, the most useful questions are whether the 1/16 inch to 1/2 inch range fits the work at hand, whether the 135-degree split point is preferred, and whether the jobber-length format matches the drills and materials being used.