Stitch Core Drilling Services
Large holes, slots and irregular openings created by overlapping core holes – the go-to method when a single core bit or a floor saw can’t do the job, especially in restricted-access areas.
Any size
Hole/slot shape
Overlapping
Core hole method
Restricted
Access areas
Dust-free
Water-fed cutting
What Is Stitch Core Drilling?
Overlapping core holes for openings a single bit can't make
Stitch drilling is a highly effective technique for creating large holes and slots in walls and floors, particularly in areas with restricted access. This method involves diamond stitch drilling, which achieves precise openings by drilling a sequence of overlapping core holes.
When conventional drilling methods don’t yield the desired results, stitch drilling provides a flexible alternative. By strategically overlapping core holes, it allows for the formation of holes of any size or shape, offering unmatched versatility in structural modifications.
Where it fits alongside our other methods
Think of it as the bridge between standard core drilling and floor sawing: use it where a single round hole is too small, but a floor saw can’t physically reach or manoeuvre – tight service risers, confined plant rooms, or openings that need to follow an irregular outline.
Why Choose Stitch Drilling
Benefits of stitch core drilling
Works in Smaller Spaces
Reaches confined areas that larger cutting equipment simply can’t access.
Any Shape, Depth or Size
Overlapping the core holes lets us form openings well beyond what a single core bit can achieve.
Clean Workspace
Water-fed diamond bits keep the work area clean throughout the process.
Minimal Waste
Eliminates the waste and cutting by-products associated with breaking or hammering methods.
Common Applications
Where stitch drilling is used
- Plant room and riser openings where large service penetrations are needed but access is tight.
- Irregular or non-circular openings for ducting, lift shafts, or custom fixture installations.
- Structural modification projects where a single core bit can’t reach the required diameter.
- Renovation work in occupied buildings where low-noise, low-vibration cutting is essential.
- Preliminary openings ahead of controlled demolition of a structural section.
Frequently Asked Questions
Stitch drilling, answered
What is stitch core drilling?
A technique for creating large holes and slots by drilling a sequence of overlapping core holes – used when a standard core bit can’t achieve the size or shape required.
When is stitch drilling used instead of a floor saw?
In restricted-access areas a floor saw can’t reach, or for irregular shapes conventional sawing can’t produce.
Can stitch drilling cut any shape?
Yes – overlapping core holes can form openings of virtually any size, depth or shape.
Is stitch drilling a clean process?
Yes, water-fed diamond bits keep the workspace clean and eliminate dust and waste by-products.
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