Reviewing the Best Drill Bit for Fiberglass in 2022: Our Top 5 Unbiased Choices

As a DIYer or a professional, you understand that different projects contain different materials that may require drilling.  For the best outcome, it’s best to choose the right drill bit for the job.

Today we’re talking fiberglass!  As a delicate material, drilling fiberglass can be challenging but we’re here to help.  Below we share our expert buying guide and a comprehensive review of our top 5 drill bits for fiberglass!

Top Fiberglass Drill Bits: Comparison Table

This table gives a brief overview of the 5 most popular fiberglass drill bits from the top brands on the market. Just immediately after this section is our detailed buying guide, followed by the product descriptions.

DEWALT Titanium Nitride Coated Drill Bit Set,...
Milwaukee 48-89-4680 18-Piece Shockwave Impact...
ENERTWIST Titanium Drill Bit Kit Set for Metal and...
Rowiz 3 Pcs Step Drill Bits, 1/4 Inch Hex Shank...
Dewalt 21-Piece Titanium Pilot Point Drill Bit Set
Milwaukee 18-Piece Shockwave Titanium Drill Bit Set
ENERTWIST Titanium 230-Piece 118° Drill Bit Set
Rowiz 3 Pcs Titanium Step Hex Shank Drill Bits
Material:
Titanium
Titanium
Heavy duty plastic storage case, High speed steel, coated with titanium for extra durability
Alloy Steel
Cuts through:
Metal, Wood and Plastic
Metal, Wood and Plastic
Metal, Wood, Fiber glass and Plastics
Metal, Wood, Fiber glass and Plastics
Size Bits:
1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 1/2, 3/8, 5/16, 1/4, 1/64, 7/32, 13/64
2 x 1/16″, 2 x 5/64”, 2 x 3/32”, 1 x 7/64”, 2 x 1/8″, 1 x 9/64”, 1 x 5/32”, 2 x 3/16”, 1 x 7/32”, 2 x 1/4″, 1 x 5/16”, 1 x 3/8″
from 3/64-inch to 1/2-inch
3/16-1/2, 1/8-1/2, 1/4-3/4inch
Finish Type:
Titanium
Titanium
Titanium
Titanium
Cutting Angle String
-
135 Degrees
118 Degrees
-
Drill into Fiberglass?
Prime?
DEWALT Titanium Nitride Coated Drill Bit Set,...
Dewalt 21-Piece Titanium Pilot Point Drill Bit Set
Material:
Titanium
Cuts through:
Metal, Wood and Plastic
Size Bits:
1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 1/2, 3/8, 5/16, 1/4, 1/64, 7/32, 13/64
Finish Type:
Titanium
Cutting Angle String
-
Drill into Fiberglass?
Prime?
Milwaukee 48-89-4680 18-Piece Shockwave Impact...
Milwaukee 18-Piece Shockwave Titanium Drill Bit Set
Material:
Titanium
Cuts through:
Metal, Wood and Plastic
Size Bits:
2 x 1/16″, 2 x 5/64”, 2 x 3/32”, 1 x 7/64”, 2 x 1/8″, 1 x 9/64”, 1 x 5/32”, 2 x 3/16”, 1 x 7/32”, 2 x 1/4″, 1 x 5/16”, 1 x 3/8″
Finish Type:
Titanium
Cutting Angle String
135 Degrees
Drill into Fiberglass?
Prime?
ENERTWIST Titanium Drill Bit Kit Set for Metal and...
ENERTWIST Titanium 230-Piece 118° Drill Bit Set
Material:
Heavy duty plastic storage case, High speed steel, coated with titanium for extra durability
Cuts through:
Metal, Wood, Fiber glass and Plastics
Size Bits:
from 3/64-inch to 1/2-inch
Finish Type:
Titanium
Cutting Angle String
118 Degrees
Drill into Fiberglass?
Prime?
Rowiz 3 Pcs Step Drill Bits, 1/4 Inch Hex Shank...
Rowiz 3 Pcs Titanium Step Hex Shank Drill Bits
Material:
Alloy Steel
Cuts through:
Metal, Wood, Fiber glass and Plastics
Size Bits:
3/16-1/2, 1/8-1/2, 1/4-3/4inch
Finish Type:
Titanium
Cutting Angle String
-
Drill into Fiberglass?
Prime?

Fiberglass Drill Bits: Buying Guide

Drill bits are available in a variety of options since they are made to fulfill different drilling tasks. While the price is essential in the selection of drill bits, it shouldn’t be your key factor in determining their efficiency.

The following features will help you to choose the right bits for your drills.

Size

The thickness or width of a bit is what describes its size. Fortunately, drill bits come as a set with the most popular bit sizes ranging from 1/16 to ¼ inches for increased versatility.

This means that the more the bits and availability in different sizes, the easier it will be for you to finish various tasks.

Material

Drill bits are either made from high-speed steel, cobalt, or steel. Steel bits are the most affordable but are also most suitable for soft materials like wood because they get dull or break easily when used on harder surfaces.

Cobalt and HSS are the most preferred for heavy-duty materials like metal, hardwoods, and combos like PVC or fiberglass.

The shape of Bit Point

The shape of the bit’s tip defines the type of material it can be drilled into. The most common bit shapes are namely:

  • Speed Helix bits – aggressive, drill into surfaces quickly and are more durable than the others.
  • 118° point bits – majorly crafted for use on plastic, wood, and light metal.
  • 135° point tips – best for heavy-duty drilling tasks on strong materials like metal or slow boring.
  • 90° bit points – especially good for fast cutting.

Drill Bit Shank

The shank of a drill bit is the furthest end that you fit into the chuck. The chuck of a drill has mechanical arms that are used to hold the bit.

There are different types of bit shanks, namely:

  • Tri-flat – great because they prevent spinning when used in high torque loads.
  • SDS – specially designed for hammer drills and don’t need tightening.
  • Rounded – accurate, allows you to center the bit into a drill’s chuck, but prone to slippage.
  • Straight – Great accuracy and centering abilities but also problematic to tighten and slip.
  • Hex shanks – ensure the chuck grips the bit firmly to deliver maximum torque.

Bit Coating

The bit points need a beautiful finish to increase their overall performance. The regularly used bit finishes you will come across are titanium nitride and black oxide.

  • Titanium-coated drill bits are preferred over the High-Speed Steel (HSS), cobalt, and the others.  This is because the bits are more robust, stay sharp for long, and produce less friction.
  • On the other hand, black oxide-coated bits are highly resistant to heat and help prevent corrosion.

Number of Bits

The number of bits varies from one package to the other. Most drill sets have around 14-21 pieces of bits, while others may have more.

A high number of bits bring more flexibility and helps you to minimize the cost of making frequent purchases in the future.

In short, the number of drill bits will determine the number of tasks you will complete.

Best Fiberglass Drill Bits: Product Reviews

We understand the task of finding good fiberglass drill bits isn’t easy. This is why we have selected the best brands, followed by a brief description of each. This is to ensure you purchase a drill bit set that suits your needs.

1. Dewalt 21-Piece Titanium Pilot Point Drill Bit Set

Specification List:
  • Material: Titanium
  • Cuts through: Metal, Wood and Plastic
  • Size Bits: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 1/2, 3/8, 5/16, 1/4, 1/64, 7/32, 13/64
  • Finish Type: Titanium
  • Tool Flute Type: Spiral
  • Number of bits: 21 bits
  • spiral tool flute Dewalt drill bitsThis set of 21-pieces of drill bits ranging from sizes 1/16 inches to ½ inches from Dewalt brings in the versatility that you’ll love.
  • All these Dewalt bits are contained in a tough plastic bag for safe storage and portability.
  • The bits have a durable titanium pilot point, which is great for drilling into plastic, wood, or non-porous metals.
  • Unfortunately, the drills get dull quickly when used on heavy-duty surfaces.
  • Finally, the non-spin shanks, together with the tapered web design, elongate the durability of the bit by resisting breakage.

Buyer’s Feedback Section

Section Updated: March 13, 2022

Overall Rating 4.8 of 5 Stars 

Positive Feedback
  • Includes multiple drill bits
  • Durable titanium pilot points
  • Secure grip clip latches
  • Great value for the quality
Negative Feedback
  • Not suitable for heavy-duty metal drilling
  • Durability inconsistent between sizes

Buyers are raving over this highly rated drill bit set.  They are strong and durable and a great value for something of this quality.  Be aware that these are labeled in imperial versus metric terms.  “These are brilliant drill bits and do the job perfectly.”

2. Milwaukee 18-Piece Shockwave Titanium Drill Bit Set

Specification List:
  • Material: Titanium
  • Cuts through: Metal, Wood and Plastic
  • Size Bits: 2 x 1/16″, 2 x 5/64”, 2 x 3/32”, 1 x 7/64”, 2 x 1/8″, 1 x 9/64”, 1 x 5/32”, 2 x 3/16”, 1 x 7/32”, 2 x 1/4″, 1 x 5/16”, 1 x 3/8″
  • Finish Type: Titanium
  • Tool Flute Type: Spiral
  • Shank Type: Hex
  • Cutting Angle String: 135 Degrees
  • Number of bits: 18 bits

titanium finish Milwaukee drill bit setFrom the sturdy plastic storage bag with special bit compartments to the different bit sizes, this 18-piece Milwaukee drilling set delivers beyond your expectations.

  • The bits range from size 1/16 to 3/8 inches.
  • They have a 135-degree angled tip for different drilling applications on wood, PVC, and selected metals.
  • The extended hex shank geometry allows easy clearance of debris or chips for a frictionless and cool drilling process.
  • However, the hex shape of the bits does reduce their usable length.
  • Lastly, the durable titanium coating on each bit tip minimizes heat buildup and warping even if you drill through different surfaces.

Buyer’s Feedback Section

Section Updated: March 13, 2022

Overall Rating 4.8 of 5 Stars 

Positive Feedback
  • Durable titanium coating
  • Robust storage bag
  • Multiple bit sizes
Negative Feedback
  • Quite expensive
  • Hex shanks minimize the usable length

Our list continues with another highly rated, popular set.  This set is more of an investment but based on reviews they are worth it.  Multiple buyers mentioned that this was the best set they have ever owned.  “These drill bits work great for the handyman who does a lot around the house and for the contractor.”

3. ENERTWIST Titanium 230-Piece 118° Drill Bit Set

Specification List:
  • Material: Heavy duty plastic storage case, High speed steel, coated with titanium for extra durability
  • Cuts through: Metal, Wood, Fiber glass and Plastics
  • Size Bits: from 3/64-inch to 1/2-inch
  • Finish Type: Titanium
  • Tool Flute Type: Spiral
  • Shank Type: Round
  • Cutting Angle String: 118 Degrees
  • Number of bits: 18 bits

round shank Enertwist Titanium drill bit setThis full-size ENERTWIST drill set is comprised of 230 pieces of 3/64 inch to ½ inch bits for most wood, metal, fiberglass, or plastic drilling applications.

  • Despite their durability, the bits may not hold up to heavy-duty drilling on masonry, metal, or concrete.
  • All the bits come appropriately arranged in a sturdy cushioned container according to their sizes, so you don’t mix them up.
  • Also, these bits last 6 times more than the conventional ones. This is thanks to the titanium coating that help to minimize heat buildup.

Buyer’s Feedback Section

Section Updated: March 13, 2022

Overall Rating 4.4 of 5 Stars 

Positive Feedback
  • Backed by a 1-year ENERTWIST warranty
  • Long-lasting titanium coating
  • Set includes a full range of sizes
  • Great price for the number of bits included
Negative Feedback
  • Not great for heavy-duty metal or concrete drilling
  • Smaller sizes aren’t as durable

This is an affordable option on our list, as it includes a full range of high-quality drill bits.  There is some mention of some of the sizes not holding up over time, but the majority of users were pleased with the longevity of this set.  “Decent quality, great assortment, incredible price.”

4. Rowiz 3 Pcs Titanium Step Hex Shank Drill Bits

Specification List:
  • Material: Alloy Steel
  • Cuts through: Metal, Wood, Fiber glass and Plastics
  • Size Bits: 3/16-1/2, 1/8-1/2, 1/4-3/4inch
  • Finish Type: Titanium
  • Shank Type: Hex
  • Number of bits: 3 bits
  • titanium finish Rowiz 3 pcs Drill BitsThese HSS (High-Speed Steel) Rowiz bits are coated with titanium to boost their durability and efficiency.
  • Although the package has only 3 bits, they are suitable for various applications on metal, fiberglass, wood, and even plastic.
  • The hex shank allows easy fitting into a drill’s chuck for efficient drilling.
  • Finally, the bits range from sizes ¼-inch to ¾ inches and have 6 to 13 steps for convenient use on different surfaces.

Buyer’s Feedback Section

Section Updated: March 13, 2022

Overall Rating 4.1 of 5 Stars 

Positive Feedback
  • Sturdy hex shank
  • Durable HSS construction
  • Multiple sizes are included in the set
Negative Feedback
  • A small number of drill bits

5. Dewalt DW1342 Titanium 21-Piece Drill Bit Set

Specification List:
  • Material: Titanium
  • Cuts through: Metal, Wood and Plastic
  • Size Bits: 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 11/64, 3/16, 1/2, 3/8, 5/16, 1/4, 1/64, 7/32, 13/64
  • Finish Type: Titanium
  • Tool Flute Type: Spiral
  • Number of bits: 21 bits

spiral tool flute Dewalt DW1342 drill bitsThis 21-piece drill set is almost similar to the #1 Dewalt bit in this list. The major difference is that the earlier ones have a pilot-point tip while these have a speed tip for reduced walking.

  • The bits are ergonomically designed with non-spin shanks to provide a safe hold onto the drill.
  • A range of sizes from 1/16-1/2 inches meets different drilling applications on wood, plastic, or metal.
  • Their titanium coating increases their life span, primarily when used on non-ferrous metals.

Buyer’s Feedback Section

Section Updated: March 13, 2022

Overall Rating 4.8 of 5 Stars 

Positive Feedback
  • Includes multiple bits
  • Non-spin shanks
  • Great value
  • Sturdy design and titanium finish
Negative Feedback
  • The bits are not of consistent quality

We wrap up our list with another highly-rated set.  These bits are sturdy, with a strong design and a strong titanium finish.  Reviewers were pleasantly surprised by the quality of these, with many saying these are a great addition to their tool kit.  “Highly recommend this drill set; excellent on wood, and cuts through thin (but tough) aluminum easily.”

Frequently Asked Questions

Do you still not get the gist of drill bits? Most likely these questions will help you out.

Can drill bits be sharpened?

Drill bits are bound to get dull after some time because they aren’t meant to stay sharp forever. The bits can be sharpened easily using a bench grinder.

Can bits be used on any drill?

Many drill bits are interchangeable. You must, however, consider the bit shank size or the extent to which the drill chuck opens for correct fitting.

How can I drill a hole into fiberglass?

Since fiberglass is a delicate material, the drilling has to be done with precision to prevent chipping off the edges.

Our Best Pick

Dewalt is a manufacturer that is known for its high quality and efficient tools. This is no wonder its Dewalt 21-Piece Titanium Pilot Point Drill Bit Set is our top choice.

The set comes with different bit sizes that feature pilot titanium-coated tips with non-spin shanks for added durability. What’s more, the 22 bits are comfortable to carry around because they come in a convenient storage bag.

Bottom Line

Getting the right bit for your drill makes your craftwork easy. Drill bits are available in different sizes, materials, and shapes since they are made to perform multiple functions. Working into surfaces like fiberglass requires high-quality drill bits that won’t break or get dull quickly despite being subjected to rigorous tasks.

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