The CLIP TOP Bi-Fold hinge solves a problem that drives cabinet installers crazy — getting corner cabinet doors to open properly without banging into each other. With its 60-degree opening angle and specialized design for corner cabinets, this isn’t your standard cabinet hinge trying to do a specialty job. It’s purpose-built for the awkward geometry of lazy Susans, pie-cut corners, and L-shaped cabinets.
At 4.4 to 5 stars across major retailers, contractors have figured out what Blum already knew — corner cabinets need their own hardware solution. The days of forcing 110-degree hinges to work where they shouldn’t are over.
Why Corner Cabinets Need Different Hardware
Standard cabinet hinges open to 110 or 120 degrees because that’s what you need for straight runs of cabinets. Corner cabinets don’t work that way. The CLIP TOP Bi-Fold’s 60-degree opening angle is specifically engineered for inside-corner or L-shaped cabinets, pie-cut corner cabinets, and lazy-Susan door-to-door configurations.
Here’s what makes this hinge different from the standard CLIP TOP line:
| Specification | Value |
|---|---|
| Opening angle | 60 degrees |
| Cup diameter | 35 mm |
| Boring pattern | 45 mm |
| Closing mechanism | Self-closing (integrated spring) |
| Material | Nickel-plated steel |
| Adjustment | 3-dimensional (side, depth, height) |
| Mounting plate compatibility | 0 mm CLIP top frameless cam mounting plate |
The all-metal construction matters when you’re dealing with the leverage forces of corner cabinet doors. Plastic components would fail under the stress of daily use, especially on larger doors typical in corner applications.
Installation That Doesn’t Fight You
The genius of the CLIP TOP system shows up during installation. The snap-on and lift-off design allows for tool-free assembly and removal. No more holding a door at an awkward angle while trying to drive screws into a mounting plate.
The screw-on version (79T8500) includes tool-free attachment to the mounting plate via the CLIP top mechanism, while press-in and dowel versions (79T8530) are also available. Once mounted, 3D adjustment allows for precise door alignment — critical when you’re dealing with the compound angles of corner cabinets.
The 35mm cup diameter and 45mm boring pattern means you’re using the same drill bits and jigs as standard Blum hinges. No special tooling required. The hinge works with standard Blum drilling patterns, so if you’ve already got the setup for regular CLIP TOP hinges, you’re good to go.
What This Replaces (And Why It Matters)
This hinge replaces older Blum models 79.815 and 79.850, as well as Mepla pie-cut corner hinges. If you’ve been nursing along cabinets with these discontinued models, here’s your upgrade path. The 79T8500 uses the same boring pattern but gives you the modern CLIP TOP mounting system.
The concealed hinge design means no visible hardware when doors are closed — important for maintaining clean lines in modern kitchen designs. Combined with the integrated 35mm spring closing mechanism, you get positive closing action without the complexity of soft-close dampers that would be overkill for smaller corner doors.
The Verdict
Corner cabinets are where good kitchen designs go to die. The CLIP TOP Bi-Fold hinge fixes that. At 60 degrees, it opens just enough to access the cabinet without creating door conflicts. The tool-free mounting saves installation time. The 3D adjustability means you can dial in perfect alignment even when the cabinet box isn’t.
Skip this if you’re looking for soft-close functionality — this model uses spring-closing, not BLUMOTION. But for lazy Susans, pie-cut corners, and L-shaped cabinet applications, this specialized hinge does exactly what it’s supposed to do. Sometimes the right tool for the job is worth more than all the fancy features in the world.
Blum guarantees ‘trustworthy function’ for the CLIP top line, though specific warranty terms vary by retailer. What matters more is that across Woodworker Express, Ferguson, Rockler, and Home Depot, customer ratings average between 4.2 and 5.0 stars. Real contractors using real hardware in real kitchens — that’s the endorsement that counts.
Frequently Asked Questions
Q: What’s the opening angle on the Blum CLIP TOP Bi-Fold hinge and why does it matter?
The Blum CLIP TOP Bi-Fold hinge (model 79T8500) opens to 60 degrees, specifically designed for corner cabinet applications where standard 110-degree hinges would cause doors to collide. This restricted angle is perfect for inside-corner or L-shaped cabinets, pie-cut corner cabinets, and lazy-Susan door-to-door configurations.
Q: Will the CLIP TOP Bi-Fold hinge fit my existing Blum cabinet holes?
Yes, the CLIP TOP Bi-Fold uses Blum’s standard 35mm cup diameter and 45mm boring pattern, so it fits the same holes as other CLIP TOP hinges. It’s also compatible with all Blum CLIP top mounting plates and replaces older Blum models 79.815 and 79.850.
Q: Does this hinge have soft-close like other CLIP TOP models?
No, the CLIP TOP Bi-Fold (79T8500) uses a self-closing integrated spring mechanism, not BLUMOTION soft-close technology. The spring provides positive closing action suitable for the smaller, lighter doors typically used in corner cabinet applications.
Q: How do you install and adjust the CLIP TOP Bi-Fold hinge?
The hinge features Blum’s snap-on and lift-off CLIP TOP design for tool-free assembly and removal from the mounting plate. Once installed, it offers 3-dimensional adjustment (side, depth, and height) for precise door alignment, with screw-on (79T8500) and press-in/dowel (79T8530) versions available.
Q: What kind of warranty does Blum offer on the CLIP TOP Bi-Fold?
Blum guarantees “trustworthy function” for the CLIP top line, though specific warranty terms vary by retailer such as Woodcraft’s 90-day and CabinetParts’ 30-day return windows. The hinge’s all-metal nickel-plated steel construction and 4.2-5.0 star ratings across retailers like Home Depot, Rockler, Ferguson, and Woodworker Express reflect its durability.
Q: Can I use regular CLIP TOP hinges instead of the Bi-Fold for corner cabinets?
The CLIP TOP Bi-Fold’s 60-degree opening angle is specifically engineered for corner cabinet geometry where standard 110-degree hinges would cause door interference. While regular CLIP TOP hinges work great for straight cabinet runs, the Bi-Fold is the proper solution for lazy Susans, pie-cut corners, and L-shaped cabinet configurations.
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