Best 10 drill bits for hardened steel bolts -Buying Guide

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

1
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"
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...
9.9
2
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"
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,...
9.4
3
Lichamp 29PCS HSS Cobalt Drill Bits Set 1/16" to 1/2" with Three Flute for Hard Metal, Hardened Stainless Steel and Cast Iron
Lichamp 29PCS HSS Cobalt Drill Bits Set 1/16" to 1/2" with Three Flute for Hard Metal, Hardened Stainless Steel and Cast Iron
9
4
IRWIN Drill Bit Set, M35 Cobalt Alloy Steel Steel, 29-Piece (3018002)
IRWIN Drill Bit Set, M35 Cobalt Alloy Steel Steel, 29-Piece (3018002)
8.6
5
Drill America - DWD29J-CO-PC 29 Piece M35 Cobalt Drill Bit Set in Round Case (1/16" - 1/2" X 64ths), DWDCO Series
Drill America - DWD29J-CO-PC 29 Piece M35 Cobalt Drill Bit Set in Round Case (1/16" - 1/2" X 64ths), DWDCO Series
8
6
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.
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...
7.7
7
Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set (29 Piece)
Norseman Drill Bits 44170 Ultra Dex Type 240-UB 135 Degree Split Point Magnum Super Premium Jobber Drill Set (29 Piece)
7.6
8
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"
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...
7.4
9
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
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...
7.2
10
DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)
DEWALT Titanium Nitride Coated Drill Bit Set, Pilot Point, 21-Piece (DW1361)
7

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...

$119.99
in stock
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

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,...

out of stock
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

Features

Part Number Cobalt Twist Drill Bit
Size 115Pcs

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
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

Features

Part Number CDB-B02900
Model CDB-B02900

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

$155.99
in stock
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

Features

Part Number 3018002
Model 3018002
Size 29pc Pro Case

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

$106.17
in stock
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

Features

Part Number DWD29J-CO-PC
Model DWD29J-CO-PC
Size 1 Case

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...

$64.89
in stock
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

Features

Part Number LZ-COBALT-19984
Size Cobalt 29 PCS

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

$135.77
in stock
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

Features

Part Number 44170
Model 44170

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...

$57.98
in stock
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

Features

Part Number M35
Model M35

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...

$14.19
in stock
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

Features

Part Number 01925A
Model 01925A
Color Clear
Size 1 Pack

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

$26.98 $32.98
in stock
Amazon.com
Amazon price updated: September 23, 2026 12:48 pm

Features

Part Number DW1361
Model DW1361
Warranty 30 Day Money Back Guarantee
Color Yellow Titanium Pilot Point Drill Bit Set
Size One Size

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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