7 Best Drill Bits for Plexiglass 2026

When tackling thick plexiglass, few bits deliver the precision and durability of the Amana Tool HSS1524. These 1/4″ high-speed steel drill bits are engineered specifically for plastic, featuring a specialized point angle that prevents grabbing—a common frustration when drilling acrylics. With over 40 years of toolmaking expertise, Amana ensures each bit in this 5-pack maintains consistent sharpness and balance, making them a go-to for fabricators who demand reliability in industrial or workshop environments.

In real-world use, these bits excel at clean penetration through sheets 1/4″ and thicker, producing smooth, chip-free holes without melting or cracking. Their rigid HSS construction holds up well under sustained drilling, though slower RPMs (ideally under 1,500) are recommended to avoid heat buildup. We tested them on 3/8″ Lexan and found zero wandering or tear-out, even without pilot holes. However, they’re less ideal for delicate, thin plastics where a finer tip would offer more control.

Compared to standard jobber bits, the Amana HSS1524 offers superior geometry and material quality, outperforming generic plastic-cutting bits in both finish and longevity. While not designed for micro-drilling, they dominate when bore size and strength matter most. They’re the clear choice over the SOURCEONE.ORG or CRL models if you’re working with industrial-grade plexiglass slabs, offering more robust performance than smaller bits while maintaining surgical accuracy.

For mid-size drilling tasks in acrylic and polycarbonate, this 3/16″ diamond-coated bit strikes an impressive balance between performance and accessibility. Its diamond dust coating isn’t just marketing fluff—it genuinely extends edge life, allowing for dozens of clean passes through 1/4″ plexiglass without dulling. The 3.5″ length offers ample reach for handheld drills, and the optimized flute design ensures efficient chip ejection, reducing the risk of clogging or overheating. If you hate chipped edges or bits that grab and twist, this one’s built to eliminate those headaches.

During testing on 3/16″ to 1/2″ thick sheets, the bit delivered smooth, burr-free holes with minimal effort, even in handheld mode. We used it on ABS, PVC, and standard Plexiglas, and it handled all with consistent accuracy and no wandering. The high-speed steel core provides resilience, but aggressive feed pressure can still lead to slight melting on the exit side—so a slow, steady hand is key. It’s not meant for step drilling or variable diameters, but for fixed 3/16″ holes, it’s remarkably dependable.

When stacked against the Amana 1/8″ or 1/4″ HSS models, this bit lacks the same level of industrial refinement, but it punches above its weight for DIYers and light fabricators. It’s more versatile than the CRL bit for general use and more affordable than premium hand-ground options, making it a smart middle ground. For users who need reliable, mid-diameter drilling without overspending, this bit offers better value than specialized single-use alternatives.

Don’t let its budget-friendly label fool you—this 1/4″ plastic drill bit delivers professional-grade results without the premium markup. At 4-1/8″ long, it offers extra reach for deep drilling, making it ideal for through-holes in display cases or layered acrylic assemblies. Like its smaller sibling, it features a diamond dust coating and high-speed steel core, ensuring clean, crack-free penetration in plexiglass up to 1/2″ thick. The anti-grab tip geometry is spot-on, preventing the violent snatching that ruins delicate plastic work.

In hands-on tests, it drilled ten consecutive holes in 3/8″ acrylic with no sign of dulling or overheating. The flute efficiently cleared debris, and the bit stayed centered without pilot guidance—a win for speed and accuracy. While it doesn’t have the hand-ground precision of U.S.-made Amana or SOURCEONE.ORG bits, it performs nearly as well for most applications. That said, it’s not recommended for ultra-fine finishes or CNC setups, where microscopic tolerances matter.

Compared to the Amana HSS1524, this bit lacks the same brand pedigree and pack consistency, but for one-off projects or occasional use, it’s a smarter investment. It outperforms generic hardware store bits by a wide margin and matches more expensive options in real-world finish. If you need a no-fuss, reliable 1/4″ hole in plexiglass without overspending, this is the most cost-effective performer in the lineup.

The CRL 1/4″ Plexiglass Drill Bit earns its “Best Overall” title by solving the two biggest pain points in plastic drilling: bit grab and edge chipping. Its special extra-sharp tip combined with a precision-calculated point angle ensures the bit bites cleanly without jerking or veering off course—a lifesaver when working on large, unsupported sheets. This isn’t just a repackaged metal bit; it’s specifically engineered for plexiglass, making it a favorite among glaziers and sign makers who can’t afford mistakes.

We tested it on 1/2″ cast acrylic and were impressed by how smoothly it entered and exited, leaving no star-shaped fractures or halo cracks. Even at moderate speeds (2,000 RPM), it stayed cool and stable, thanks to its efficient flute design and balanced tip geometry. It’s not designed for thin plastics under 1/8″, where smaller bits would be more appropriate, and it lacks coatings for extended wear—but for one-time, high-stakes drilling, that’s a fair trade.

Against the Amana HSS1524, the CRL bit offers similar hole quality but at a more accessible price point, though it doesn’t come in multi-packs. Compared to the SOURCEONE.ORG model, it’s less refined but more widely trusted in professional circles. For users who need a single, reliable bit for critical plexiglass jobs, the CRL delivers exceptional control and finish, making it the most balanced choice across price, performance, and reliability.

If flawless, museum-grade finishes are your goal, the SOURCEONE.ORG premium bit is engineered for perfection. Hand-ground in the USA, this bit features a micro-precision tip that eliminates even the faintest hint of chipping—ideal for display cases, acrylic art, or lighting installations where every edge must be pristine. The craftsmanship ensures perfect symmetry and cutting balance, reducing vibration and delivering holes that look machine-polished, not drilled.

In real-world use, it excels on thin to medium acrylics (1/8″ to 3/8″), producing glass-smooth walls with zero breakout. We drilled through colored plexiglass and Lucite, and not a single hole required sanding. The bit stays sharp longer than mass-produced alternatives, but it demands strict speed control—exceeding 1,200 RPM risks melting due to its ultra-fine edge. It’s not built for heavy-duty or high-volume work, but for aesthetic-critical applications, that’s a fair compromise.

Compared to the CRL or Amana models, this bit offers superior surface finish but less durability under continuous use. It lacks a wear-resistant coating, so it’s best reserved for precision jobs, not production runs. For artists, model makers, or restorers who prioritize finish over speed, this bit delivers unmatched clarity and edge quality, outperforming even titanium-coated options when flawless transparency matters most.

When your project demands multiple hole sizes in plexiglass without changing bits, the Titanium Step Drill Bit Set is a game-changer. Its 17-step conical design lets you drill holes from 1/8″ to 3/4″ with a single bit, making it perfect for electrical cutouts, mounting brackets, or custom enclosures. The titanium-coated surface enhances heat resistance and longevity, while the hex shank design ensures a secure grip in both drills and impact drivers—no slippage, even under torque.

We used it on 1/4″ acrylic sheets and were impressed by how cleanly it stepped through increasing diameters without chipping. The gradual taper reduces grabbing, and the included quick-change bit holder makes swaps fast and tool-free. It’s not ideal for ultra-thin or brittle plastics, where stepped pressure can cause stress fractures, and it requires steady feed control to avoid melting. But for prototyping or field work, its versatility is unmatched.

Compared to the single-diameter Amana or CRL bits, this set sacrifices absolute precision for massive functional range. It’s not the best for tight-tolerance holes, but for installers, electricians, or makers who need flexibility and speed, it delivers far more utility than any fixed-size bit. With the ability to replace dozens of standard bits, it offers exceptional adaptability and workflow efficiency, especially when drilling through mixed materials like plastic, metal, and PVC.

For precision drilling in thin or delicate plexiglass, the Amana HSS1520 1/8″ bit is a micro-engineering marvel. Designed for fine detail work, its laser-sharp tip and optimized flute geometry prevent splitting in sheets as thin as 1/16″, making it ideal for model building, instrument panels, or display fixtures. Like all Amana tools, it’s built to exacting standards, with each bit in the 5-pack rigorously inspected for consistency—no weak links.

In testing, it drilled perfectly round, burr-free holes in 1/8″ acrylic without any support backing, a feat many cheaper bits fail. The high-speed steel holds an edge even after repeated use, and the shorter length enhances control in tight spaces. While it’s not suited for deep or large-diameter holes, it excels where accuracy and finesse are paramount. Feed it too fast, and you’ll see slight melting—but at 800–1,200 RPM, it’s flawless.

Next to the SOURCEONE.ORG bit, the Amana HSS1520 offers similar precision but with greater durability and pack value. Compared to the 1/4″ HSS1524, it’s the specialist to the brute—smaller, sharper, and built for micro-applications. For users working on electronics enclosures, scale models, or intricate signage, this bit delivers professional-grade control and finish, making it the top choice for detailed plexiglass craftsmanship.