1000mm Stitch Core Opening | SHIBUYA TS402

May 22, 2026

1000mm Stitch Core Drilling.
This project involved creating a 1000mm diameter circular opening in reinforced concrete using the stitch core drilling method with the SHIBUYA TS402 Core Drill.

Instead of using a single large diameter core bit, multiple overlapping core holes were drilled around the perimeter to form a precise circular opening. This stitch coring technique is widely used for large diameter penetrations where conventional core bits are impractical or unavailable.

Project Details

• Machine Model: SHIBUYA TS402 Core Drill
• Drilling Method: Stitch Core Drilling
• Opening Diameter: 1000mm
• Opening Shape: Circular
• Drilling Depth: 1000mm
• Material: Reinforced Concrete
• Location: Malaysia

Project Highlights

• Accurate circular opening formation
• Excellent drilling precision
• Suitable for large diameter penetrations
• Reduced vibration compared to concrete breaking methods
• Minimal damage to surrounding structures

Benefits of Stitch Core Drilling

• Ideal for large diameter openings
• Cleaner finish compared to demolition methods
• Better structural control
• Reduced noise and vibration
• Suitable for M&E, HVAC, piping, and infrastructure projects

The SHIBUYA TS402 delivered stable and reliable drilling performance throughout the project, enabling the successful completion of a 1000mm diameter circular opening using the stitch coring method.