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VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry
Top highlights
  • 1-1/4 in-7 universal thread fits handheld and stand drills for easy attachment
  • Diamond wet cutting reduces heat, friction, and boosts drilling speed
  • Carbon steel with 95HRB hardness ensures durability and precise performance
AI Summarized from product information
Specifications
  • Item Model Number 89*350
  • Diameter 3-1/2 in/89 mm
  • Inner Thread 1-1/4 in-7
  • Max Drilling Depth 14 in/356 mm
  • Welding Method Laser Welding
  • Wet/Dry Application Wet

Reviews · 4.0

Jacob Paine Jacob Paine
in US on Nov 09,2026
3-1/2 inch
Drill bit did its job.
lasorsa.michele lasorsa.michele
in IT on Oct 25,2026
3-1/2 inch
ottimo

About this item

Description
3-1/2 Inch Wet Diamond Core Drill Bit
Made of premium carbon steel with diamond-grit teeth, this core drill bit maintains sharpness while cutting and grinding hard materials, delivering excellent wear resistance and long-lasting durability.
Our diamond wet coring bit enables fast cutting in wet mode, which provides cooling and lubrication to reduce wear, extending drill life, and minimizing dust for cleaner operation.
Crafted with high-precision welding for excellent wear resistance and high-temperature stability, this concrete core drill bit keeps diamond teeth strong and secure under tough drilling conditions, minimizing tooth loss or detachment for long-lasting durability.
These core bits for concrete are simple to install and operate, even for beginners. Ensure the drill bit is straight and aligned with the hole wall during use for optimal performance and results.
The core bit ensures clean, precise holes in tough materials like red bricks, concrete, and foam blocks. Suitable for all your drilling needs in construction and renovation projects.
Product guides and documents
User manual-en (PDF) Review

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VEVOR Core Drill Bit, 89 mm Diameter, 356 mm Drilling Depth, 1-1/4 in-7 Internal Thread, High-Precision Welding Technology, Wet Diamond Core Bit for Reinforced Concrete, Red Bricks, and Masonry

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