GMTOOLS 115Pcs Cobalt Drill Bits Set, M35 High Speed Steel, 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Metal Indexed Storage Case, 1/16"-1/2"

Best 10 drill bits for hardened steel bolts -Buying Guide

In this guide today, we are here with our in-depth review of the best drill bits for hardened steel bolts. There are plenty of choices with multiple websites and therefore difficult to choose the best one. We recommend to read the guide and choose the one that suits your need as we review products based on the various options, features, price, quality and many more . To avoid this dilemma, we recommend to read this guide and review. It gives you insider information on how to choose the best drill bits for hardened steel bolts for your needs and budget.

This is the ultimate buyers guide drill bits for hardened steel bolts.

Our Top Picks

The Best drill bits for hardened steel bolts

COMOWARE Cobalt Drill Bit Set- 115Pcs M35 High Speed Steel Twist Jobber Length for Hardened Metal, Stainless Steel, Cast Iron and Wood Plastic with Metal Indexed Storage Case, 1/16" - 1/2"

$139.99  in stock
as of June 28, 2024 12:19 pm

Features

  • 115 PIECES INCLUDED: 29pcs Fractional Size:1/16” to 1/2” in 1/64th increments; 26pcs Letter Size: A To Z; 60pcs Numbered Size: #1 To #60.
  • HSS WITH 5% COBALT: Durable, Higher Heat & Abrasion Resistance.
  • PRECISE 135° SPLIT POINT & TWIST DESIGN: Prevent walking, clear chips and particles faster.
  • PROFESSIONAL & WIDELY USE: M35 Cobalt HSS is more suitable for hardened material. Particularly successful in cutting through hard metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and also can be used for softer materials.
  • ORGANIZED HOLDER: Set includes the drill bit holder with size index for easy storage and organizing.

GMTOOLS 115Pcs Cobalt Drill Bits Set, M35 High Speed Steel, 135 Degree Tip, Twist Jobber Length Drill Bit Kit for Hardened Metal, Cast Iron, Stainless Steel, Plastic and Wood with Metal Indexed Storage Case, 1/16"-1/2"

$179.99
$139.99
 in stock
as of June 28, 2024 12:19 pm

Features

  • 115 Pieces Set Includes: 29pcs Fractional Size: 1/16 to 1/2 inch bits in 1/64th increments; 26pcs Letter Size: A To Z; 60pcs Numbered Size: #1 To #60; Set includes the drill bit holder with size index for easy storage and organizing
  • Perfect Drill Bits: Precision grinding process for a clean surface and high grinding accuracy. Universal round drill shank, widely applicable of tool holding systems and tightly clamped
  • 135° Split Point & Twist Design: The 135 degree fast cutting point is automatically centered and penetrates quickly with less pressure, reducing walking, fully ground drill bit with sharp and durable cutting edge. Twist design for clear chips faster
  • Enhanced M35 Alloy Material: These drill bits contain 5% Cobalt alloy steel, which increases wear resistance and durability. Industry grade 6542 high speed steel drill bit set, harder than 4241 HSS used in other similar drill bits set
  • QUALITY COMMITMENT: If for any reason you are not satisfied with your purchase, please contact us. We provide 30-day money back. 100% Satisfaction Guarantee for risk-free shopping!

Lichamp 29PCS HSS Cobalt Drill Bits Set 1/16" to 1/2" with Three Flute for Hard Metal, Hardened Stainless Steel and Cast Iron

$89.99  in stock
as of June 28, 2024 12:19 pm

Features

  • UNIQUE 3X FLUTE DESIGN - Lichamp three flute patent design drill bit clears chips and particles faster, provide you with more efficient drilling experience.
  • 4X LIFESPAN MATERIAL - Made from industrial grade M35 high-speed steel with 5% cobalt provides hardness for wear resistance, withstands max 1100 degreeF.
  • MULTIPLE APPLICATION - Ideal for drilling in heavy-duty tough metal, including hard abrasive alloy metal, hardened stainless steel or cast iron.
  • SMOOTHLY DRILLING - 135-degree split point tip & twist design increases cutting speed with self-centering and prevents skating starts or walking.
  • 29PCS DRILL BIT SET - Metal index case with size chart for easy bit access and identification. Includes drill bit sizes 1/16-inch to 1/2-inch in 1/64-inch increments. The 1/8-inch to 1/2-inch bits are specially designed three flute bits, while the four smaller bits from 1/16-inch to 7/64-inch are two flute bits.

IRWIN Drill Bit Set, M35 Cobalt Alloy Steel Steel, 29-Piece (3018002)

$124.53  in stock
22 new from $122.99
4 used from $94.24
Free shipping
as of June 28, 2024 12:19 pm

Features

  • 29 Piece
  • Cobalt Alloy Steel Drill Bit Set
  • Sizes 1/16 inch -1/2 inch in 1/64 inch increments, 135 Degree Split Point To Minimize Walk
  • 5% Cobalt Alloy Steel For Higher Heat & Abrasion Resistance
  • Heavy Duty Web Construction For Strength & Durability

Drill America - DWD29J-CO-PC 29 Piece M35 Cobalt Drill Bit Set in Round Case (1/16" - 1/2" X 64ths), DWDCO Series

$95.68  in stock
13 new from $94.51
3 used from $82.23
Free shipping
as of June 28, 2024 12:19 pm

Features

  • Set of 29 jobber length drill bits includes inch sizes 1/16" to 1/2" in 1/64" increments
  • Cobalt steel provides extended tool life compared to high-speed steel drill bits when drilling hard materials
  • Gold oxide finish lubricates the drill bit and provides wear resistance
  • Self-centering 135-degree split point penetrates hard material without a pilot hole and produces small chips to reduce clogging
  • Meets ANSI specifications

HIDOTOL Cobalt Drill Bit Set 29 PCS - M35 High Speed Steel Twist Jobber Drill Bits for Hardened Metal, Stainless Steel, Cast Iron, Plastic and Wood with Indexed Round Case,1/16"-1/2" by 1/64" THS.

$59.89  in stock
as of June 28, 2024 12:19 pm

Features

  • High Quality Material - High Speed Steel M35 (Cobalt 5%) provide extended tool life compared to ordinary drill bits when drilling hard materials.
  • Characteristics - 135° split point with round straight shank, self-centering prevent walking, make drilling precise and faster. Fully Ground twist design helps clear particles faster, decreases friction and heat for a cooler drilling performance.
  • Widely Used - M35 Cobalt High Speed Steel is more suitable for tough, high tensile strength material. Particularly successful in cutting harden metals such as stainless steel, cast iron, high temperature alloy, titanium alloy, hard plastics and woods, and it also can be used for softer materials.
  • Specifications - Set of 29pcs jobber length drill bits includes: 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", by 1/64" Increments.
  • 100% Satisfaction Guarantee - If you are not fully satisfied with our product for any reason, please feel free to contact us, we will try our best to serve you.

Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set (29 Piece)

$104.67
$98.82
 in stock
13 new from $98.31
Free shipping
as of June 28, 2024 12:19 pm

Features

  • 29 pc. Ultra Dex Set Premium High Speed Steel Heavy Duty NAS 907B 135-Degree Split Point
  • 1/16 - 1/2 by 64ths - Ultra Dex
  • Precision ground point, flutes, body, clearance and drill diameter for ultimate accuracy and performance
  • Special Hi-Molybdenum tool steel/ Gold Oxide

MACXCOIP Cobalt Drill Bit Set, 29Pcs M35 High Speed Steel Bits for Hardened Metals, Stainless Steel, Cast Iron and Wooden Plastics, with Metal Index Storage Box, 1/16"-1/2"

$64.99
$55.98
 in stock
as of June 28, 2024 12:19 pm

Features

  • [Various Sizes] 29 sets of drill bits include 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", can meet more needs
  • [M35 Cobalt Drill Bit] The M35 cobalt drill bit is a durable, sharp and robust drill bit suitable for cutting stainless steel, iron castings, copper, aluminum and other soft metals as well as plastics, wood etc
  • [Quick and Efficient] The cobalt drill bit set can be used effectively on most soft and hard objects, with a 135 degree point tip and twist design for faster cutting, self-centering to prevent walk-off and faster chip and particle removal
  • [HSS Drill Bit Set] HSS Jobber Length Drill Bit Kit for hardened steel with excellent cutting performance. 29 sets of drill bits for long term use. The inserts are hardened and polished for improved sharpness and precise cutting without wobbling
  • [Easy Storage] The drill set includes drill holders with size indexes and is packaged in a small, strong package for easy storage and sorting. If you have any questions, please feel free to contact us and we will be happy to help you

NEIKO 01925A Screw-Extractor and Left-Hand Drill-Bit Set, HSS M2 Steel Drill Bits, Alloy Spiral Flutes, Reverse Drill-Bit and Bolt Extractor, Easily Remove Stripped Screws and Broken Bolts, 10 Pieces

$14.99
$13.47
 in stock
3 new from $13.47
3 used from $9.46
Free shipping
as of June 28, 2024 12:19 pm

Features

  • BOLT EXTRACTORS: Extraction bits easily remove broken screws, studs, bolts and other fittings effectively. Stripped bolt remover and extractor works on seized bolts, broken fasteners, and commonly called an easy out.
  • LEFT HANDED DRILL BIT: Left-hand drill bits are made from cobalt fortified high speed steel for increased durability and service life. Reversed drill bit are used for removing broken bolts or studs turning left to prevent further tightening of the bolt or screw.
  • SPIRAL FLUTES: Unscrew tool with spiral flute bit dig into the screw, increasing grip as torque is applied for removal of screws, fasteners and bolts. Strip screw extractor kit gets those stubborn fasteners out.
  • METAL CARRYING CASE: Stored in a durable metal index carrying case for easy organization and storage with all sizes that are clearly labeled. Carrying size for when WD40 or easy out lubricant doesn’t get the job done.
  • INCLUDES: Sizes: Left hand bits / reversed drillbits - 5/64", 7/64", 5/32", 1/4", 19/64" and Matching Alloy Extractors (stud outs) - #1, #2, #3, #4, #5 in a red carrying case.

DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)

$29.99
$26.67
 in stock
7 new from $26.67
5 used from $24.37
Free shipping
as of June 28, 2024 12:19 pm

Features

  • DEWALT drill bit set has connectable accessory storage system to optimize storage space
  • Patented bit-bar design of the drill bits set allows easy removal of bits and customizable placement
  • Clear lid of the Titanium Nitride Coated drill bit set allows you to easily see contents at glance
  • Clip latch for secure closing
  • Small Bulk Storage size fits inside the Small and Medium ToughCase plus (sold separately) - Ideal for organizing loose bits

The Video Review of Best drill bits for hardened steel bolts

Conclusion

Our best overall drill bits for hardened steel bolts, the Perception and the reviews helps assist to choose you the product better. We hope our reviews buyer guide of these drill bits for hardened steel bolts will help you pick the perfect drill bits for hardened steel bolts for you and your buying decision making.

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