AWTOOLS Diamond Crown 112/430mm for Drilling Machine

When standard core bits dull out or wander off-center in reinforced concrete, this AWTOOLS diamond crown keeps its line and keeps cutting. The 112 mm diameter and 430 mm working length open up deep, clean passages for pipework, cabling, and ventilation without the frustration of premature wear.

Highlights

• High-grade diamond segments brazed onto a high-strength steel body for lasting sharpness
• Open-end design allows quick core removal, so you spend less time clearing debris
• 1 1/4" UNC mounting thread fits most professional core drilling machines and rigs
• Wet drilling recommended to control dust, cool the bit, and extend segment life
• 10 segments at 3.5 mm width and 10 mm height deliver balanced, aggressive cutting

In daily use

Contractors working on concrete, reinforced concrete, brick, masonry, or asphalt will appreciate the bit's resistance to wear and its ability to hold a true diameter. The brazed segments stay put under load, reducing the risk of segment loss that plagues cheaper crowns. Water feed is essential—not just for dust suppression but to preserve the diamond edge and steel body over repeated jobs.

Full specifications

• Drilling diameter: 112 mm
• Working length: 430 mm
• Mounting thread: 1 1/4" UNC
• Drilling method: Wet drilling
• Suitable materials: Concrete, reinforced concrete, brick, masonry, asphalt
• Segment type: High-grade diamond segments
• Segment height: 10 mm
• Segment width: 3.5 mm
• Number of segments: 10
• Body material: High-strength steel
• Segment bonding: Brazed
• Application: Professional construction, plumbing, electrical installations

Final note

Built for professionals who demand clean, accurate holes in tough materials, this diamond crown delivers consistent performance and long service life.