To drill hinge cups without chipping the edge banding, use a sharp 35 mm hinge boring bit, set the cup position from your hinge maker's template, back the door with a firm surface, plunge slowly with a depth stop, and drill only after the banded edge's glue has fully set.
This guide is for cabinet shops, furniture makers and DIY builders who hang concealed (European-style) hinges on laminate, TFL, melamine or plywood doors with PVC or ABS edge banding. It covers why chips happen near the edge and how to set up so the first door comes out clean.
Key takeaways
- Most chips come from a dull or wrong bit, a fast plunge, or a cup placed too close to the banded edge.
- Take the cup diameter, edge distance and depth from your hinge maker's template, not from memory.
- Band first, let the adhesive set, then drill. Drilling into a fresh glue line can lift the edge.
- Cold, stiff banding cracks more easily. Let panels and rolls reach room temperature before machining.
- Test on a banded offcut of the same panel before you drill a full set of doors.
Why does edge banding chip when you drill hinge cups?
Edge banding chips at a hinge cup because the bore leaves only a thin wall of board between the cup and the banded edge. If the bit tears instead of cuts, that thin wall flexes and the band or the panel's surface layer breaks out. The most common causes are:
- A dull or chipped bit. A worn cutter pushes material instead of slicing it, which tears the laminate around the rim.
- A fast plunge. Pushing the bit down hard stresses the thin wall next to the edge.
- Too little edge distance. A cup set closer to the edge than the hinge template calls for leaves almost no support behind the band.
- A loose door. If the door shifts or bounces, the bit grabs and the rim breaks out.
- Fresh or weak adhesive. If the glue line has not set, the band can lift when the bit vibrates the edge.
Where should the hinge cup sit relative to the banded edge?
The hinge cup should sit exactly where your hinge maker's drilling template puts it. Most concealed hinges use a 35 mm cup, and the distance from the door edge to the cup is set by the hinge model and the overlay you want. Many templates fall in a range of a few millimeters, often around 3 to 6 mm, but check the data sheet for your exact hinge.
Remember that the edge band is part of the door edge. Measure edge distance from the finished, trimmed band, not from the raw panel. If you lay out doors before banding, add the band thickness to your layout so the cup does not end up closer to the edge than planned.
| Setting | Where to get it | What goes wrong if it is off |
|---|---|---|
| Cup diameter | Hinge maker's template (35 mm is common) | Hinge will not seat, or the cup wall is too thin |
| Edge distance | Hinge template for your overlay | Too close: chipping and a weak edge. Too far: wrong overlay |
| Cup depth | Hinge template and door thickness | Too deep: breakthrough on the face. Too shallow: hinge sits proud |
| Bore position from door top/bottom | Hinge template and door height | Hinges hit shelves or each other |
How do you drill a hinge cup cleanly, step by step?
- Check the band first. Make sure the edge is fully bonded, trimmed flush and scraped. A lifted corner will not get better once you drill next to it.
- Use a sharp hinge boring bit. Carbide-tipped bits made for hinge cups cut laminate cleanly. Replace or resharpen a bit that leaves fuzz or a rough rim.
- Set a depth stop. Use a drill press, a hinge boring jig or a line boring machine with a fixed stop, set to the hinge template.
- Clamp the door face up on a flat, firm surface. A sacrificial backer board under the door stops vibration.
- Plunge slowly. Let the bit cut. Ease off as you reach full depth, then lift straight out.
- Clear the chips and inspect. Look at the cup rim and the banded edge beside it from an angle before you move on.
Does edge banding thickness or material change how you drill?
Yes, a little. Whatever the thickness, measure the cup position from the finished edge. Thicker banding, such as 2 mm, is often chosen for doors that take a lot of knocks. Thinner banding, such as 0.5 mm or 1 mm, is less forgiving if a cup ends up closer to the edge than the template calls for, so careful layout and a sharp bit matter more.
PVC and ABS both machine well when they are at room temperature. Rigid plastics get stiffer when they are cold, so let panels and banding acclimate in the shop before drilling. For more on the two materials, see ABS vs PVC edge banding, and for door edges in particular, when to use 1mm edge banding.
What about handle holes and screws near the banded edge?
The same rules apply to handle holes, hinge plate screws and shelf pins near an edge. Drill handle holes from the face with a sharp brad-point bit and a backer board behind the exit side. A strip of low-tack painter's tape over the drill spot helps keep laminate from lifting at the rim.
When you drive hinge plate screws into a cabinet side close to the front edge, pre-drill pilot holes. Driving a large screw into particleboard near an edge can split the board and push the band off.
How to choose edge banding for doors that take hinges
Pick the band thickness for the wear the door will see, then match the color and texture to the panel. For busy kitchen and bath doors, many shops choose a thicker edge for impact resistance. For lighter furniture and closet doors, 1 mm is common. Our edge banding thickness and width guide walks through the choice.
For a common white door, see CT10008S, matched to EGGER W960 ST7 Classic White, which lists 1 mm and 1.2 mm options on its product page. Browse the full white edge banding collection or the wood grain collection for other decors.
FAQ
Should I drill hinge cups before or after edge banding?
After. Band the door, let the adhesive set, trim and scrape the edge, then drill. Measure the cup position from the finished edge.
What size hole do concealed hinges need?
Most concealed cabinet hinges use a 35 mm cup, but some compact or special hinges differ. Always check the hinge maker's template.
Why does the laminate chip around the cup rim even when the edge is fine?
That is usually a dull bit or a fast plunge. A sharp hinge boring bit, a slow feed and a firm backer under the door stop most rim chipping.
Can I fix a small chip next to a hinge cup?
Often, yes. See our guide to repairing chipped or lifting edge banding during install.
Test on your own panels first
Before you drill a full job, band an offcut of the same panel and drill a test cup. Order free edge banding samples to check color and fit, or contact our team with your panel code.
