Diamond Products 10072 Core Bore 4-1/4 Inch Star Blue Wet Diamond Core Bit for Cured Concrete and Hard Materials 5/8-11 Thread 13 Inch Depth

Industrial Strength Precision: The Diamond Products 4-1/4" Star Blue Wet Core Bit

The Diamond Products 10072 Core Bore Star Blue Wet Diamond Core Bit is an elite drilling solution engineered for professionals who demand high-tier performance and exceptional value. As a centerpiece of the Core Bore series, this 4-1/4 inch bit is optimized with superior diamond quality for general-purpose drilling through cured concrete and high-density hard materials. It is the go-to choice for mechanical, plumbing, and HVAC contractors who need to create clean, burr-free passage holes for large-diameter piping, conduit, and structural venting. The segmented design ensures aggressive material removal while maintaining the durability needed for the most rigorous construction environments.

Designed for use with specialty core drills and mounted rigs, this wet coring bit provides a standard 13-inch drilling depth, allowing for deep penetration through thick structural slabs and foundations. To ensure maximum segment life and peak drilling speed, this bit must be used with a consistent water supply for cooling and debris removal. Built with a heavy-duty low-carbon steel body and a universal UNC threaded hub, the Star Blue series offers the perfect balance of industrial longevity and cost-effectiveness. Whether you are tackling a commercial infrastructure project or a precise industrial installation, the 10072 bit delivers the reliable, professional-grade results that keep your jobsite moving.

Key Features

• Premium Diamond Quality: Engineered for high-speed cutting and superior value in cured concrete and masonry.
• Professional Wet Coring: Optimized for water-cooled operation to prevent segment overheating and extend tool life.
• Precision Accuracy: Designed to produce perfectly smooth, precise holes in poured concrete and hard materials.
• 13-Inch Industrial Depth: Standard core length suitable for deep through-hole drilling in foundations and walls.
• Rugged Steel Construction: Low-carbon steel body built to withstand high-torque industrial core motors.
• Value-Priced Performance: The Star Blue line provides professional-grade results at an accessible general-purpose price point.

What's Included

• (1) Diamond Products 4-1/4" Star Blue Wet Core Bit (10072)
• (1) Safety Information and Usage Guide

Specifications

Pro-Tip: When coring with a 4-1/4" bit, the surface area of the segments is substantial. To prevent the diamonds from "glazing" or becoming dull, ensure you maintain consistent downward pressure to keep the segments open. If the drilling speed slows significantly, briefly drill into a softer abrasive material like a cinder block or a specialized dressing stone to expose fresh diamonds and restore original cutting performance.