When it comes to drilling through hardened steel bolts, the right tool can make all the difference. Tungsten carbide drill bits are a popular choice for their durability and longevity. In this blog, we'll be discussing the top 3 best drill bits for hardened steel bolts.

1. DEWALT DW1361 Titanium Pilot Point Drill Bit Set

First on our list is the DEWALT DW1361 Titanium Pilot Point Drill Bit Set. This set includes 14 pieces ranging in size from 1/16" to 3/8". The pilot point design helps to prevent walking and the titanium coating makes these bits more wear-resistant. These drill bits are also ideal for use on wood, plastic, and metal.

2. Bosch CO2132 3/16-Inch Carbide Tipped Drill Bit

The Bosch CO2132 3/16-Inch Carbide Tipped Drill Bit is a high-speed steel bit with a carbide tip for added strength and durability. The tip is designed to stay sharp longer and the flute design helps to prevent clogging. This drill bit is ideal for use on hardened steel, cast iron, and stainless steel.

3. Irwin Tools 3018002 Cobalt M-35 Metal Index Drill Bit Set

Last but not least is the Irwin Tools 3018002 Cobalt M-35 Metal Index Drill Bit Set. This set includes 29 pieces ranging in size from 1/16" to 1/2". The cobalt M-35 steel construction makes these bits 10 times more durable than regular high-speed steel bits. The 135-degree split point design helps to prevent walking and allows for easier starting.

Conclusion

In conclusion, if you're looking for the best drill bits for hardened steel bolts, tungsten carbide drill bits are the way to go. The DEWALT DW1361 Titanium Pilot Point Drill Bit Set, Bosch CO2132 3/16-Inch Carbide Tipped Drill Bit, and Irwin Tools 3018002 Cobalt M-35 Metal Index Drill Bit Set are all great options to choose from. Whichever one you choose, make sure to follow proper drilling techniques to ensure the best results.