Best Zinc Jobber Drill Bits in 2026

Daisy
Last Updated: Jul 18, 2026

At a Glance: Our Top Picks for Zinc Jobber Drill Bits

Drill America GLBCOX65/32 5/32" x 6" Cobalt Aircraft Extension Drill Bit, GLBCO Series
#TOP1
Drill America Glbcox65/32 5/32" X 6" Cobalt Aircraft
9.8
PM SCORE
BOSCH CO2143 1/4 In. x 4 In. Cobalt Drill Bit
#TOP2
Bosch Co2143 1/4 In. X 4 In. Cobalt
9.7
PM SCORE
2/Pack Solid Carbide Drill Bit for Hardened Steel Hard Ness HRa 91.3 Aerospace Standard K20 Tungsten Carbide Jobber Length Twist Drill for Metal 118 Degree Four Facet Point Fractional Size (5/32")
#TOP3
2/Pack Solid Carbide Drill Bit For Hardened Steel
9.4
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Zinc Jobber Drill Bits of 2026

Market Overview
Zinc Jobber Drill Bits Reviewed
  • Reviews Analyzed: 14833 Items
  • PM Avg. Rating: 5.5 / 10
60 Products Evaluated
  • Highest Price: $594.99
  • Lowest Price: $3.10
  • Avg. Price: $64.91

Drill America Glbcox65/32 5/32" X 6" Cobalt Aircraft Extension Drill Bit, Glbco Series

DRILL AMERICA
GLBCOX65/32
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Effective in drilling tough, high tensile strength materials like stainless steel, inconel and titanium

135° split point tip prevents drill from walking

Round shanks allow use with a wide variety of tool holding systems

Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools

6" overall length for drilling where extra length for reach is required

Bosch Co2143 1/4 In. X 4 In. Cobalt Drill Bit

BOSCH
CO2143
0.00 X 0.00 X 0.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Withstands high-temperature applications for extended periods of time (up to 1,100 degreeF)

Rigid, thick web design adds stability to bit in tough applications

Surface hardened to penetrate tough abrasive materials, Cuts through light gauge metal, high carbon steel, aluminum and alloy steel, cast iron and stainless steel

Available in jobber length, full shank, Drill Point Angle is 135 degrees, Surface Coating is uncoated (bright finish), Bit type is Twist

Best used for drilling into light-gauge metal, high-carbon steel, aluminum and ally steel, cast iron, stainless steel and titanium

2/Pack Solid Carbide Drill Bit For Hardened Steel Hard Ness Hra 91.3 Aerospace Standard K20 Tungsten Carbide Jobber Length Twist Drill For Metal 118 Degree Four Facet Point Fractional Size (5/32")

MARS-TOOL
MT532SCD
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Mars-Tool 9.85

Features

★【Premium Bright Finish 2/Pack】 multi-purpose solid carbide drill bits provide better rigidity than high speed steel bits. It is extremely heat resistant and used for high speed applications. Our tungsten carbide (WC) bits has the advantage of cutting metal either "wet" or "dry" and they provide solutions for many businesses such as aerospace drilling jobs for aircraft mechanics, precision machining, hobby supply, etc.

★【Recommended For Use On】 aircraft metals chrome titanium inconel stainless steel Alloys Steel Low-Medium-High Carbon Steel Aluminum Copper Glass Plastics Composite Materials Cast Iron -- Our Carbide drills stay sharp many times longer than traditional steel bits making them ideal for the toughest of applications!

★【Optimal Design for Metal Work】 118° four facet point angle minimizes drill wander and assures accurately sized holes. Our jobber length, precision ground carbide drills are designed for high feed rates with good chip disposal. smooth finish on the bits increases chip flow. Spiral flutes are constructed with a higher flute angle to remove chips more easily.

★【Specs】 Flute Length: 1-3/8 inch, Overall Length: 2-1/2 inch, Drill Size: 5/32 inch // Tungsten Carbide Grade (ISO): K20 // Binder: %8 Cobalt // Hardness: 91.3 HRa // Uncoated

Tungsten carbide is a composite material, although it looks like a metal, it is a composite of Tungsten carbide powder mixed with cobalt as a binder metal, the resulting material is more like a ceramic than a metal. It is a very hard material being a 9 on the Mohs scale where diamond is a 10 and hard steel around 5. It will chew down into most anything but the hardness makes them brittle with virtually no plasticity. Unstable drilling can result in a broken bit. These drills like a a rigid dri

Ticonn 30 Pcs Titanium Coated Drill Bit Set With Hex Shank, 135 Degree Tip High Speed Steel Drill Bits Kit With Storage Case For Steel, Aluminum, Copper, Soft Alloy Steel Size From 1/16" To 1/2"

TICONN
TICONN-522
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TICONN US 9.93

Features

[PREMIUM QUALITY] TICONN drill bits are made from premium quality titanium coated high speed steel (HSS). These bits will stay sharper, last longer, and can drill at higher speeds than uncoated and oxide-coated drill bits. Double U shape flutes design clear chips effectively

[WIDE APPLICATION] 135° point angle drill bits keep centered without a pilot hole. These jobber self-centering drill bits have the rigidity and length for most applications of corded or cordless hand drills and drill presses. Ideal for drilling mild steel, aluminum, copper, soft alloy steel, wood, and plastic

[SIZE LIST] 30 different sizes including 1/16, 5/64", 3/32", 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64", 7/32", 15/64", 1/4", 17/64", 9/32", 19/64", 5/16", 21/64", 11/32", 23/64", 3/8", 25/64", 13/32", 27/64", 7/16", 29/64", 15/32", 31/64", 1/2", one piece for each size and a adapter.

[EXTRA CENTER PUNCH] A rugged case keeps all drill bits well organized. Molded size on the case lid will help you to identify the bits you need with less effort. Included center punch will help you to mark and drill more precisely.

[TICONN BRAND QUALITY COMMITMENT] We stand behind the quality of our products. If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back and 12 months warranty. 100% Satisfaction Guarantee for risk-free shopping!

Ticonn 99Pcs Titanium Coated Drill Bit Set, 135 Degree Tip Hss Drill Bits Kit With Storage Case For Steel, Aluminum, Copper, Soft Alloy Steel, Wood, Plastic Size From 1/16" To 3/8"

TICONN
TICONN - 461
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TICONN US 9.93

Features

[PREMIUM QUALITY] TICONN drill bits are made from premium quality titanium coated high speed steel (HSS). These bits will stay sharper, last longer, and can drill at higher speeds than uncoated and oxide-coated drill bits. Double U shape flutes design clear chips effectively

[WIDE APPLICATION] 135° point angle drill bits keep centered without a pilot hole. These jobber self-centering drill bits have the rigidity and length for most applications of corded or cordless hand drills and drill presses. Ideal for drilling mild steel, aluminum, copper, soft alloy steel, wood, and plastic

[SIZE LIST] 14 different sizes including 16PCS 1/16", 16PCS 5/64", 15PCS 3/32", 10PCS 7/64", 10PCS 1/8", 8PCS 9/64", 8PCS 5/32", 3PCS 11/64", 3PCS 3/16", 2PCS 13/64", 2PCS 7/32", 2PCS 1/4", 2PCS 5/16", and 2PCS 3/8"

[EXTRA CENTER PUNCH] A rugged case keeps all drill bits well organized. Molded size on the case lid will help you to identify the bits you need with less effort. Included center punch will help you to mark and drill more precisely.

[TICONN BRAND QUALITY COMMITMENT] We stand behind the quality of our products. If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back and lifetime warranty. 100% Satisfaction Guarantee for risk-free shopping!

Chicago Latrobe - 69900 157 Series High-Speed Steel Short Length Drill Bit Set With Metal Case 118 Degree Conventional Point, Inch, 29-Piece, 1/16" - 1/2" In 1/64" Increments

CHICAGO LATROBE
69900
1.90 X 7.30 X 4.20 Inches
2.50 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Set of 29 short length drill bits includes inch sizes 1/16" through 1/2" in 1/64" increments

High-speed steel (HSS) provides hardness for wear resistance

Uncoated (bright) finish is an untreated surface that can be used on a range of materials, especially soft metals

118-degree conventional point for a range of drilling applications

Short length drill bits have the strength and rigidity required for heavy-feed rate applications

Made in the USA

#TOP7

Cleveland C70368 29 Piece High Speed Steel Heavy-Duty Screw Machine Length Drill Bit Set, Uncoated (Bright) Finish, Round Shank, Spiral Flute, 135 Degrees Split Point, 1/16" To 1/2" Size

CLEVELAND TWIST DRILL
C70368
8.86 X 4.15 X 1.93 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Set of 29 heavy duty screw machine length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments

High-speed steel (HSS) provides hardness for wear resistance

Uncoated (bright) finish has no additional surface treatment or coating

Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging

Meets ANSI specifications

Made in the USA

Chicago-Latrobe 550 115 Piece Heavy-Duty Cobalt Steel Jobber Length Drill Bit Set, Gold Oxide Finish, Round Shank, Spiral Flute, 135 Degree Point Angle

CHICAGO LATROBE
46650
13.62 X 4.92 X 2.56 Inches
8.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Sizes in Set: 1/16 - 1/2 x 64ths; #1 - #60; A - Z

Number of Tools: 115

Manufactured to NAS 907 Type J geometry aerospace specifications with self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging and gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools

Heavy duty construction for increased strength and rigidity compared to standard drill bits

Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys

Milwaukee 48-89-1824 Thunderbolt 5/16-Inch Titanium Nitride Coated Twist Drill Bit

MILWAUKEE
48-89-1824
0.65 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
RFBDirect 8.39

Features

5/16 in. diameter, Jobbers length

Super hard Titanium Nitride surface treatment increases drill life up to 500% over uncoated drill bits

Premium industrial grade steel Self-centering, 135 degree split point reduces "walking" at the drill point

Hss Extra Long Drill Bit With 1/2"Shank Size: 3/4" X 12"

QUALTECH
DWDDL12X3/4X1/2
6.00 X 4.00 X 2.00 Inches
1.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CTI GROUP 9.62

Features

Size: 3/4, Material: High Speed Steel, Finish: Uncoated (Bright), Flute Length: 9, Overall Length: 12, Shank Size: 1/2, Shank Type: Round, Style: Extra Length, Cutting Angle: 118, Point Type: Conventional Point, Number of Flutes: 2, Cutting Direction: Right Hand

Yg-1 High Speed Steel Nc Spotting Drill Bit, Uncoated (Bright), Straight Shank, Slow Spiral, 90 Degree, 1" Diameter X 6-17/128" Length (Pack Of 1)

YG-1
0641L
1.14 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

NC spotting drill

90 Degree point angle

Made of 8 percent cobalt and high speed steel

For more precise centering work on NC/CNC machine

A larger diameter in respect to the subsequent drilling tool permit to obtain the centering and chamfering simultaneously

Precision Twist Qc91G High Speed Steel Long Length Drill Bit, Tin Coated, Round Shank, Parabolic Flute, 135 Degree Point Angle, 36 (Pack Of 12)

PRECISION TWIST DRILL
QC91GN36
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Xcess Limited 9.86

Features

Parabolic flute design offers enhanced chip removal, coolant flow to the drill point, and heat dissipation

Long length drill bits, also called taper length, have longer flutes and overall lengths than jobber drill bits

135-degree radius split-point is self-centering, reduces walking, good for hard material, and reduces pressure on cutting edges

Titanium nitride (TiN) is a coating to extend cutting tool life and permit faster cutting speeds than with uncoated tools

High-speed steel (HSS), for use on a wide variety of materials

99 Pcs Titanium Coated Drill Bit Set With Case, 135 Degree Tip Hss Drill Bits Kit For Steel, Aluminum, Copper, Soft Alloy Steel, Wood, Plastic Size From 1/16" To 3/8"

JTZXJJX
WYK1411
8.00 X 9.00 X 3.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Jiejiexinshop 5.76

Features

[PREMIUM QUALITY] 99Pcs drill bits are made from premium quality titanium coated high speed steel (HSS). These bits will stay sharper, last longer, and can drill at higher speeds than uncoated and oxide-coated drill bits. Double U shape flutes design clear chips effectively

[WIDE APPLICATION] 135° point angle drill bits keep centered without a pilot hole. These jobber self-centering drill bits have the rigidity and length for most applications of corded or cordless hand drills and drill presses. Ideal for drilling mild steel, aluminum, copper, soft alloy steel, wood, and plastic

[SIZE LIST] 14 different sizes including 16PCS 1/16", 16PCS 5/64", 15PCS 3/32", 10PCS 7/64", 10PCS 1/8", 8PCS 9/64", 8PCS 5/32", 3PCS 11/64", 3PCS 3/16", 2PCS 13/64", 2PCS 7/32", 2PCS 1/4", 2PCS 5/16", and 2PCS 3/8"

[14 SIZE] The 99-piece round shank twist drill set contains 14 sizes to choose from to meet different needs.

[BRAND QUALITY COMMITMENT] We stand behind the quality of our products. If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back !

Cortool 99Pcs Hss Titanium Drill Bit Set, 135 Degree Split Point Hss Drill Bits Kit With Storage Case For Steel, Aluminum, Copper, Soft Alloy Steel, Wood, Plastic Size From 1/16" To 3/8"

CORTOOL
10000099
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Cortool 9.84

Features

CORTOOL drill bits are made from premium quality titanium coated high speed steel (HSS). These bits will stay sharper, last longer, and can drill at higher speeds than uncoated and oxide-coated drill bits. Double U shape flutes design clear chips effectively.

135° split point angle drill bits keep centered without a pilot hole. These jobber self-centering drill bits have the rigidity and length for most applications of corded or cordless hand drills and drill presses. Ideal for drilling mild steel, aluminum, copper, soft alloy steel, wood, and plastic.

14 different sizes including 16PCS 1/16", 16PCS 5/64", 15PCS 3/32", 10PCS 7/64", 10PCS 1/8", 8PCS 9/64", 8PCS 5/32", 3PCS 11/64", 3PCS 3/16", 2PCS 13/64", 2PCS 7/32", 2PCS 1/4", 2PCS 5/16", and 2PCS 3/8".

A rugged case keeps all drill bits well organized. Molded size on the case lid will help you to identify the bits you need with less effort. Included center punch will help you to mark and drill more precisely..

CORTOOL stand behind the quality of our products. If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back and lifetime warranty. 100% Satisfaction Guarantee for risk-free shopping!

13 Pcs Titanium Coated Drill Bit Set With Hex Shank+ 24Pcs Ratcheting Wrench Set

TICONN
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TICONN US 9.93

Features

[PREMIUM QUALITY] TICONN drill bits are made from premium quality titanium coated high speed steel (HSS). These bits will stay sharper, last longer, and can drill at higher speeds than uncoated and oxide-coated drill bits. Double U shape flutes design clear chips effectively

[WIDE APPLICATION] 135° point angle drill bits keep centered without a pilot hole. These jobber self-centering drill bits have the rigidity and length for most applications of corded or cordless hand drills and drill presses.

[SIZE LIST] 13 different sizes including 1/16", 5/64", 3/32'', 7/64", 1/8", 9/64", 5/32", 11/64", 3/16", 13/64'', 7/32", 15/64" and 1/4", one piece for each size

[CONVENIENT PACK] The convenient pack is ideal for drilling mild steel, aluminum, copper, soft alloy steel, wood, and plastic.

[TICONN BRAND QUALITY COMMITMENT] We stand behind the quality of our products. If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back and 12 months warranty. 100% Satisfaction Guarantee for risk-free shopping!

Extra Long Combined Drill Bit And Countersink Size: #2 X 4"

DRILL AMERICA
DEW2X4
6.00 X 4.00 X 2.00 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
CTI Industrial Supply, LLC 9.62

Features

Size: #2, Material: High Speed Steel, Finish: Uncoated (Bright), Overall Length: 4, Shank Type: Round, Style: Combined Drill and Countersink

Cle-Line C10629 1/16 In.-1/2 In. Gold Oxide Finish Cobalt 118-Degree Split Point Twist Drill Bit Set (29-Piece Set)

CLE-LINE
C10629
9.80 X 5.50 X 4.60 Inches
0.15 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Amazon.com 9.68

Features

Cobalt steel tools are similar to high-speed steel, but with more cobalt for improved performance when cutting harder metals such as stainless steel or nickel alloys

Gold oxide is a thinner oxide surface treatment than black oxide typically used to identify cobalt steel tools; performance is similar to uncoated tools

Hex shank drills are designed for handheld applications in power tools that accept hex shanks.

High red hardness for extended wear life in high heat conditions

Set includes 1/16 in. - 1/2 in.

99Pcs Titanium Coated Drill Bit Set+ 1/4-Inch Drive Click Torque Wrench

TICONN
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
TICONN US 9.93

Features

[PREMIUM QUALITY] TICONN drill bits are made from premium quality titanium coated high speed steel (HSS). These bits will stay sharper, last longer, and can drill at higher speeds than uncoated and oxide-coated drill bits. Double U shape flutes design clear chips effectively

[WIDE APPLICATION] 135° point angle drill bits keep centered without a pilot hole. These jobber self-centering drill bits have the rigidity and length for most applications of corded or cordless hand drills and drill presses. Ideal for drilling mild steel, aluminum, copper, soft alloy steel, wood, and plastic

[SIZE LIST] 14 different sizes including 16PCS 1/16", 16PCS 5/64", 15PCS 3/32", 10PCS 7/64", 10PCS 1/8", 8PCS 9/64", 8PCS 5/32", 3PCS 11/64", 3PCS 3/16", 2PCS 13/64", 2PCS 7/32", 2PCS 1/4", 2PCS 5/16", and 2PCS 3/8"

[EXTRA CENTER PUNCH] A rugged case keeps all drill bits well organized. Molded size on the case lid will help you to identify the bits you need with less effort. Included center punch will help you to mark and drill more precisely.

[TICONN BRAND QUALITY COMMITMENT] We stand behind the quality of our products. If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back and lifetime warranty. 100% Satisfaction Guarantee for risk-free shopping!

Top 10 jobber drill bits Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Drill America 20
Chicago Latrobe 13
Ticonn 8
Precision Twist Drill 5
Yg-1 3
Cleveland 2
Mars-Tool 2
Bosch 1
Cle-Line 1
Cleveland Twist Drill 1

Top 10 jobber drill bits Brands Pie Chart


We've carried out a comprehensive analysis of 14,833 reviews on jobber drill bits, using our selection criteria to identify the best options in the home improvement. Our findings reveal that most customers typically select jobber drill bits priced around $64.91, with top brands including norseman, drill hulk, nordwolf, gmtools, comoware, behappy, macxcoip, wildbossy and dewalt and drill america

Our team of expert editors reviewed these high-quality items and handpicked the top 18 jobber drill bits for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the home improvement category. These include prime tools, drillhulk, nordwolf tools, gmtools us, tg tools, behappy crafts co.,ltd., macxcoip, qingshiyup and amazon.com and valyrian tools .

We are dedicated to assisting our users in finding the right bits Products based on their needs, saving them considerable time when choosing which jobber drill bits to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.