6 Best Jobber Drill Bits That Punch Clean Holes Every Time

If you have ever watched a drill bit wander off mark or leave a rough hole, you know how frustrating that can be.

That is why choosing the right jobber bit matters more than it may seem.

The six best options here combine durable HSS or M35 cobalt steel, sharp 135° split points, and finishes designed to help you cut cleaner with less heat.

Next, you will see which sets fit different materials, sizes, and storage needs, and one of them may be the fix your tool kit has been waiting for.

More Details on Our Top Picks

1. Norseman Ultra Dex Jobber Drill Bit Set (29-Piece)

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   Best Premium Set

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   If you want a drill bit set that feels ready for hard work right out of the case, the Norseman Ultra Dex Jobber Drill Bit Set is a strong choice. You get 29 bits in sizes from 1/16 inch to 1/2 inch, so you can move through jobs without searching for the next size. The premium high-speed, hi-molybdenum steel feels durable, and the gold oxide coating helps it stand up to heavy use. Because Norseman precision grinds the point, flutes, body, clearance, and diameter, you get cleaner starts and smoother cutting. The 135 degree split point and NAS 907B compliance add confidence.

   • Set Size:29-piece
   • Material:High-speed steel
   • Point Style:135° split point
   • Shank Type:Round shank
   • Finish:Gold oxide
   • Use Case:Heavy-duty drilling
   • Additional Feature:135° split point
   • Additional Feature:NAS 907B compliant
   • Additional Feature:Precision-ground geometry

2. CaRoller 115-Piece Cobalt Drill Bit Set

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   Best Complete Kit

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   The CaRoller 115-Piece Cobalt Drill Bit Set is a strong choice for anyone who needs one kit that can handle tough jobs without slowing you down. With 115 pieces, you are ready for fractional, letter, and wire sizes, all organized in a metal index box with a built-in clip. The M35 steel with 5% cobalt helps the bits run cooler and last longer in stainless steel, cast iron, titanium alloys, and hard plastics. The 135° split point centers quickly, which helps reduce walking and gives you better control. It is a practical option for work, repairs, and shop projects.

   • Set Size:115-piece
   • Material:M35 cobalt HSS
   • Point Style:135° split point
   • Shank Type:Round shank
   • Finish:Titanium finish
   • Use Case:Multi-material use
   • Additional Feature:Letter and wire sizes
   • Additional Feature:Metal index box
   • Additional Feature:Impact-drill compatible

3. M35 Cobalt Drill Bit Set with Storage Case

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   Best Heavy Duty

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   If you need a drill bit set that can handle tough metal without giving up early, this M35 cobalt jobber set is built for the job. It includes 20 jobber-length bits and a plastic storage case, so your sizes stay organized and ready to use. The 5% cobalt M35 HSS alloy, along with molybdenum, delivers hardness up to 67 Rockwell for stronger cutting performance. The 135° split point helps reduce walking, while the fully ground twist design clears chips efficiently. The Ti coating and 3-flat shank provide solid grip on stainless steel, cast iron, steel, aluminum, and wood, but it is not intended for glass or ceramic.

   • Set Size:20-piece
   • Material:M35 cobalt HSS
   • Point Style:135° split point
   • Shank Type:3-flat shank
   • Finish:Ti coating
   • Use Case:Hardened materials
   • Additional Feature:Up to 67 HRC
   • Additional Feature:3-flat shank
   • Additional Feature:Not for glass

4. Drill America 3/16″ Split Point Drill Bits (12-Pack)

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   Best Single Size

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   Drill America’s 3/16″ split point drill bits are a smart choice when you want clean starts, steady control, and less frustration on the job. This 12-pack includes jobber length bits made from premium high-speed steel, so they hold up well in wood, metal, stainless steel, and other hard materials. The 135° split point helps the bit center itself quickly, which reduces walking and lowers thrust. A black and gold coating adds wear resistance, while the round shank fits many drills. Two flutes clear chips smoothly as you work.

   • Set Size:12-pack
   • Material:High-speed steel
   • Point Style:135° split point
   • Shank Type:Round shank
   • Finish:Black/gold finish
   • Use Case:Metal and wood
   • Additional Feature:Black and gold finish
   • Additional Feature:12-pack quantity
   • Additional Feature:Heavy duty split point

5. M35 Cobalt Metric Drill Bits Set (19pcs)

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   Best Metric Set

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   For anyone who needs a tough, reliable set for harder metals, this M35 5% cobalt metric drill bits set stands out right away. You get 19 fully ground jobber bits from 1 mm to 10 mm, and the gold oxide finish helps reduce friction. Because the M35 cobalt steel reaches up to 67 HRC, you can drill stainless steel, cast iron, aluminum alloys, wood, and other metals with more confidence. The 135° split point starts fast, while the straight shank and 2 flutes clear chips smoothly. Keep speed and heat in check, and you will help these bits last longer.

   • Set Size:19-piece
   • Material:M35 cobalt HSS
   • Point Style:135° split point
   • Shank Type:Round straight shank
   • Finish:Gold oxide
   • Use Case:Multi-material use
   • Additional Feature:Up to 12x life
   • Additional Feature:19 metric sizes
   • Additional Feature:Sturdy plastic case

6. KENDO 5/16 Inch Cobalt Drill Bit Set (13pcs)

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   Best For Hard Metals

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   The KENDO 5/16 Inch Cobalt Drill Bit Set is a smart choice if you need a durable set that can handle demanding jobs without frequent bit changes, especially when working with stainless steel, cast iron, or other tough metals. It includes 13 jobber length twist bits made from M35 high speed steel with 5% cobalt, which helps them stay strong under heat. The 135 degree split point makes starting easier and reduces the force needed to drill. A bronze steam finish, rigid web, and straight flutes help improve wear resistance, chip flow, and control. It also comes in a handy case.

   • Set Size:13-piece
   • Material:M35 cobalt HSS
   • Point Style:135° split point
   • Shank Type:Round shank
   • Finish:Bronze steam finish
   • Use Case:Hard metal drilling
   • Additional Feature:3-flute design
   • Additional Feature:Thick web core
   • Additional Feature:100% refund/replacement

Factors to Consider When Choosing Jobber Drill Bits

When choosing jobber drill bits, start with the material and alloy, since they determine how well the bit handles heat, wear, and demanding work. Match the point angle, size range, and shank type to your task so the bit cuts cleanly and fits your drill properly. Finally, consider the coating finish because it can improve speed, reduce friction, and help extend the bit’s life.

Material And Alloy

Material choice can make or break how a jobber drill bit feels and performs in your hand. For everyday jobs, HSS gives you a solid mix of toughness and heat resistance, so you can drill mild steel, wood, and plastic without fuss. If you need more bite in hard steel, M35 cobalt HSS adds wear resistance and keeps cutting when the metal gets hot. For abrasive stock, carbide or carbide tipped bits last the longest, but they can chip if you rush or let the bit wander. Coatings such as titanium nitride or gold oxide help reduce friction and clear chips, which can extend bit life. Also, check hardness ratings carefully, because higher hardness usually means better wear life, but less forgiveness when conditions get messy.

Point Angle

Point angle shapes how a jobber drill bit starts cutting, how fast it bites, and how steady it feels in your hand. A 118° tip has a sharper edge that cuts fast in wood and plastics, but it can wander more and leave rougher burrs. A 135° point feels flatter, so it stays put better on hard metal and starts cleaner. For tougher or work hardened stock, choose a split point 135° style. It reduces thrust, centers itself, and spreads heat more evenly, which helps the bit last longer. In practice, match the angle to the material, not just the task. That simple choice can help you avoid crooked starts and wasted effort.

Bit Size Range

A good jobber drill bit set should cover the full size range you actually use, because the wrong size can slow you down fast and leave you forcing a hole that never wanted to be there. You should look for common ranges from 1/16″ to 1/2″, with 1/64″ steps whenever you need fine control. Then make sure the set includes the exact fractional, letter, wire, or metric sizes you grab most often. If you work in metric, a spread like 1.0 to 10.0 mm helps you skip math and keep fits clean. Also, check both ends of the range against your fastener, pilot hole, and clearance needs. Finally, extra common sizes can save you if one wears out or snaps.

Shank Type

Once you have picked the right size range, the shank type is what helps the bit work properly in your tool. Round shanks are the most common, so they fit many chucks and collets, but they rely on friction, which means they can slip under heavy pressure. Straight shanks also work with standard chucks, while 3-flat and hex shanks provide a stronger grip when torque increases. If you need a larger bit in a smaller drill, a reduced shank can help, though the shoulder carries more stress. You should also check shank diameter tolerance and concentricity, because tight control reduces runout and keeps holes more accurate. For special tools, Morse taper and SDS shanks need the correct holder.

Coating Finish

Finish matters more than it initially seems whenever you pick jobber drill bits, because the coating can shape how the bit cuts, how hot it runs, and how long it stays sharp. A TiN, TiAlN, or black oxide finish lowers friction, so you get smoother drilling and less heat during fast work. If you cut stainless steel or other tough alloys, a thin ceramic or TiAlN coating can hold up better than bare HSS. Gold or black oxide also helps resist rust and adds a little slip, which is handy when bits sit in a toolbox. Still, the coating is only a thin skin, so it can wear away. After that, the base metal does the real work. Use the right speed, feed, and lubricant, and you will get more life from every coated bit.

Flute Design

Choosing the right flute design can make your jobber drill bit feel almost effortless because the flutes control how chips leave the hole, how stable the bit stays, and how much heat builds up. You’ll usually pick two flutes whenever you want bigger chip space and fast clearing. Three flutes add extra core strength, so the bit feels steadier in use. Then look at the shape. Spiral flutes move chips well and work smoothly in many metals. Straight flutes help brittle materials. Parabolic flutes push chips out better in deeper holes. Also, watch the helix angle. Lower angles cut calmer and leave fewer burrs. Higher angles lift chips faster. Finally, a polished or oxide finish can reduce drag and help the bit run cooler longer.

Application Suitability

As you match a jobber drill bit to the task, the work becomes easier and far less frustrating. You will get better results when you pair HSS with wood or mild steel, and use cobalt M35 for stainless steel, hardened steel, cast iron, or hot alloys. Next, check the tip. A 135° split point helps the bit start cleanly and reduces walking across metal. Then look at the finish. Gold oxide or Ti coatings can lower heat and friction, so the bit stays sharp longer in tough materials. Also, choose a flute style that clears chips well, whether you need a simple 2 flute or a more stable 3 flute design. Finally, make sure the length and shank fit your drill and the hole depth.

Storage Case

A smart storage case does more than hold your jobber drill bits. It keeps every size safe, easy to find, and ready for the next job. Choose a sturdy case with labeled slots or clips so each bit stays separated and you can grab the right one quickly. Check the latch and hinge too, because a strong closure prevents bits from spilling in your toolbox or truck. Foam or molded plastic holders also help support the shanks and reduce vibration. If you use mixed sizes, choose a compact index that includes fractional, metric, letter, and wire gauges. Finally, look for corrosion-resistant material or a rust-inhibiting coating, along with a snug fit, so moisture stays out and your bits stay sharp longer.

Frequently Asked Questions

Which Jobber Drill Bits Work Best on Hardened Steel?

You will get the best results with cobalt M35 or M42 jobber bits on hardened steel. They stay cooler, cut harder, and resist wear. Use slow speed, firm pressure, and cutting oil for cleaner holes.

Do Cobalt Jobber Bits Resist Heat Better Than HSS Bits?

Yes, cobalt jobber bits resist heat better than standard HSS. They keep their edge longer, which helps when drilling tougher metal and can reduce wear and stalling.

How Do I Sharpen Dull Jobber Drill Bits?

You can sharpen dull jobber drill bits by grinding each cutting lip evenly on a bench grinder or with a jig, matching the original angle, then lightly relieving the heel and cooling the bit often so it does not overheat.

What Speed Should I Use for Drilling Metal?

Use a slower speed for metal, especially hard steel. Aim for around 300 to 1,000 RPM for small bits, and go lower for larger ones. This reduces heat, wear, and chatter, and helps the holes come out cleaner.

Can Jobber Drill Bits Be Used in Cordless Drills?

Yes, you can use jobber drill bits in cordless drills. They work well together when you match the shank size and speed, and your drill will produce clean holes with control.

Final Thoughts

When you need a clean hole, the drill bit does more than spin. It sets the tone for the whole job. A good jobber bit bites fast, stays cool, and leaves less mess behind. That means less wandering, less heat, and fewer rough edges to fix later.

Below, you’ll find six solid choices that can help you drill with more control and less fuss. After that, we’ll cover what to look for before you buy.

1. Norseman Ultra Dex Jobber Drill Bit Set (29-Piece)

Should you want a dependable all-around set, this one earns attention fast. Norseman Ultra Dex bits are known for smooth cutting and steady performance. The 29-piece range gives you a useful spread of common sizes, so you can handle many home or shop jobs without guessing.

The split-point tip helps the bit start more cleanly. That matters while you’re drilling into metal, because a bit that walks can leave you with a crooked start and a frustrated sigh. The jobber length also gives you a good mix of reach and control, which helps when you need a bit that feels stable in the hand.

This set works well if you want strong everyday value and a cleaner start on your holes.

2. CaRoller 115-Piece Cobalt Drill Bit Set

Should you need size variety, this set brings a lot to the table. The 115-piece range gives you more options than most people will ever use in one project, but it is helpful when you want the right fit ready to go. That can save time and keep your work moving.

The cobalt construction is a big plus for tougher materials. Cobalt bits handle heat better than basic steel bits, so they can keep cutting when the job gets demanding. That means less dulling and more confidence when you work on harder metal.

Because the set covers many sizes, it suits people who want one case that can handle repairs, builds, and shop tasks without constant searching.

3. M35 Cobalt Drill Bit Set with Storage Case

This M35 cobalt set is a smart pick if you want durability and order at the same time. The M35 alloy is made to hold up better under heat and wear, which helps when you drill stainless steel or other stubborn surfaces. In real use, that can mean cleaner holes and fewer bit changes.

The storage case matters more than people think. When bits stay organized, you waste less time hunting for the right size. You also lower the chance of nicked edges, which keeps the bits sharper longer. That is a simple win that makes your work feel smoother from the start.

If you like gear that stays tidy and ready, this set fits that need well.

4. Drill America 3/16″ Split Point Drill Bits (12-Pack)

Sometimes you do not need a giant set. You need a trusted size in a practical pack. That is where these Drill America 3/16 inch bits make sense. A 12-pack works well for repeat jobs, job site use, or any task where you know you will need the same bit again and again.

The split-point tip helps reduce walking, which is a big deal when accuracy matters. It lets you start with more control, so the bit grips the surface instead of skating across it. That makes your work feel less slippery and more sure.

This is a good choice if you already know the size you need and want a ready supply on hand.

5. M35 Cobalt Metric Drill Bits Set (19pcs)

Should you work with metric sizes, this set keeps things simple. The 19-piece spread covers useful metric diameters, so you do not have to convert sizes in your head while standing over a project. That alone can make a job feel less stressful.

Like other M35 cobalt options, these bits are built to handle heat and wear better than standard bits. That helps while you are drilling harder metals and want the edge to stay sharp longer. The result is smoother cutting and better hole quality.

This set is especially handy if your tools, fasteners, or plans are metric-based and you want a clean, organized match.

6. KENDO 5/16 Inch Cobalt Drill Bit Set (13pcs)

The KENDO 5/16 inch cobalt set is a compact pick with a focused size range. It works well when you need larger hole sizes and want bits that can stand up to tougher material. The cobalt build gives you stronger heat resistance, which helps the cutting edge stay effective longer.

A smaller set can be a good thing. It keeps your toolkit from feeling crowded, and it makes the right bit easier to grab fast. If you often drill larger holes in metal, this kind of set gives you the strength and simplicity you want.

It is a practical choice when you value directness and dependable cutting power.

Factors to Ponder When Choosing Jobber Drill Bits

Picking the right jobber drill bit is not just about price. It is about how the bit behaves when it meets the material. A bit that looks fine on the shelf can still struggle in use, so a little attention here saves a lot of trouble later.

Material of the bit

HSS bits work well for many general tasks. They are a strong starting point if you drill wood, plastic, and softer metals. But if you work with harder metal, cobalt bits often make more sense. They handle heat better, which helps the bit last longer and stay sharper.

Tip design

A 135 degree split-point tip helps the bit start where you place it. It cuts down on walking, which gives you better control right away. That matters most when you need a hole to begin exactly where you marked it.

Finish

A polished finish can reduce friction. An oxide finish can also help with wear and heat control. Either way, the finish helps the bit cut more smoothly and stay cooler than a rougher surface would.

Size range

Think about what you drill most often. Fractional sizes work well for many common jobs. Metric, letter, and wire sizes help when your work is more specific. A set with the right range saves time and keeps you from forcing the wrong bit into the job.

Flute design

Two flute and three flute designs can affect chip removal and strength. Better chip control helps keep the cut clean. It also helps reduce heat buildup, which can protect both the bit and the workpiece.

Shank style

A round shank fits many drills. A 3 flat or hex shank can improve grip and reduce slipping in some chucks. That small detail can make drilling feel more steady, especially when you work under pressure.

Storage and organization

A labeled case keeps sizes easy to find and helps protect the cutting edges. When bits stay organized, you spend less time searching and more time drilling. That is a simple convenience, but it can change the whole pace of your work.

Final thoughts

The best jobber drill bit is the one that matches your material, size needs, and drilling style. Once you choose the right mix of alloy, tip shape, and storage, your work gets easier fast. Clean holes start to feel normal, not lucky. And that is the real goal, is it not? You want every cut to land true, like a bright spark flying straight through steel.