Best Engraving Bit for Glass (2026)

Specs compared

Specifications are manufacturer rated, as published on each listing and collected 21 October 2026. Where a listing states a figure two ways, the table shows both.

What the listings tell you

We read five diamond bit listings aimed at rotary tools. All five state a 1/8 in shank and list glass among the materials. Two listings contradict their own tables: the Brccee table lists a 0.63 in minimum bore diameter against a 3 mm cutting diameter, and stainless steel as the material against diamond burr bits in the title; the Oudtinx table lists alloy as the material and titanium as the finish against diamond burr bits in the title. In both cases, trust the title and bullets.

Buying guide: the best engraving bit for glass

Drill bits vs burrs

The DRILAX set is diamond drill bits in 1, 2 and 3 mm for drilling clean holes in glass, gems and shells. The other four are diamond burrs in various shapes for carving, engraving, grinding and sanding. Pick drill bits for holes and jewelry work; pick burrs for carving designs into glass.

Grit

Stated grits: 60 on the shengbenhao, 120 on the SZYUNQ, 180 on the Oudtinx, and medium on the Brccee. Lower grit numbers cut more aggressively; higher grits leave a finer finish. The DRILAX drill bits state no grit.

Shank and tool fit

All five sets state a 1/8 in shank, which the listings fit to Dremel and other standard rotary tools, plus drills and die grinders. One shank size means any of these sets runs in the tool you already own.

Wet drilling

The DRILAX listing recommends wet drilling with light pressure and low speed for glass, to reduce heat and extend bit life. None of the burr listings mention wet work; keep the work cool and the dust down regardless.

Curious how glass behaves under a beam instead? See our can you laser engrave glass with a diode laser.

Choosing grit, shape and count for your glass work

The listings give you three decisions to make: grit, shape and how many bits you need. Start with grit. The shengbenhao set states 60 grit, a coarse cut that removes material fast, good for roughing out a design. The SZYUNQ states 120 grit, a middle ground for carving and polishing. The Oudtinx states 180 grit, finer, which suits detail work and finishing. The Brccee states medium grit without a number, which makes it the hardest of the four to judge from the listing alone.

Then match the shape to the job. The DRILAX listing describes drill bits in 1, 2 and 3 mm for tiny round holes in glass, beads and pendants, and recommends wet drilling with water, light pressure and low speed. The shengbenhao listing names 10 shapes (sphere, cone, cylinder, round head cylinder, bullet and more), and the SZYUNQ names 6 shapes and sizes, both suited to carving and engraving lines. If you drill holes, pick the DRILAX set; if you carve or engrave, pick a burr set with several head shapes.

Finally, count. The DRILAX bullets warn that diamond bits wear down over time, which is why a 30-piece set keeps you working. The Brccee kit states 60 bits in 3 boxes, the largest count here. The shengbenhao and SZYUNQ state 20 each. If you engrave glass regularly, the bigger counts make sense; for occasional detail work, 20 shaped burrs in a clear case (shengbenhao) or a plastic box of 5.94 x 3.19 x 0.47 in (SZYUNQ) will do. All five listings state a 1/8 in shank, so any of them fits a Dremel or a standard rotary tool.

Project Match

• Drilling holes in sea glass, shells and beads: DRILAX, the only drill-bit set here, listed for glass, gems, stones and shells with wet drilling.
• Carving designs into glass and stone: shengbenhao, 10 shapes in 60 grit, or SZYUNQ, 6 shapes in 120 grit.
• General rotary work across glass, metal and wood: Brccee, 60 bits in 3 boxes with a storage case.
• Fine detail work: Oudtinx, 180 grit with 1/8 in shanks in a plastic holder.

How the scores add up

Each set is scored on performance, build, value, safety and warranty, using only what the listing publishes. A spec the listing does not publish scores nothing.

Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score. Safety counts only for powered gear or where the listing states safety features; where it does not apply, the score is taken over the remaining 90 points.

FAQ: lasers and CNC

Can diamond bits engrave glass with a rotary tool?

Yes. All five listings state glass among the materials. Diamond burrs grind rather than chip, which suits fragile materials. The DRILAX listing recommends wet drilling with light pressure and low speed.

What grit should I use for glass engraving?

The shengbenhao states 60 grit, the SZYUNQ 120 grit, the Oudtinx 180 grit and the Brccee medium grit. Coarser grits remove material faster; finer grits leave smoother detail. Match the grit to the stage of the work.

Do these bits fit a Dremel?

Yes. All five sets state a 1/8 in shank, which the listings fit to Dremel and other standard rotary tools.

Should I use water when drilling glass?

The DRILAX listing says to use water for best results: it reduces heat, protects delicate materials and extends bit life. Use light pressure and low speed with it.

What is the difference between drill bits and burrs?

Drill bits like the DRILAX cut round holes. Burrs in shaped heads carve, engrave, grind and sand. Pick the shape for the job, not the other way around.

Related: can you laser engrave glass with a diode laser, glass vs acrylic for laser engraving, laser settings for glass and the CNC tooling hub.