1-1/4″ x 12″ Core Bit Extension – Multiple Thread Options

Diamond Core Bit Extension Rods – 12″ Core Drill Extensions

Extend the drilling depth of your diamond core bits with these heavy-duty core bit extension rods. Designed for use with our Fast Cutting Turbo Core Bits and other compatible diamond core drilling equipment, these extensions add 12″ of additional reach for deeper concrete, masonry, block, brick, and stone coring applications.

Also commonly called a diamond core bit extension, core drill extension, core drilling extension shaft, core bit extension shaft, or diamond drill extension rod, each extension is precision-machined from durable steel for a secure, rigid connection between the core drill and diamond core bit.

Multiple extension rods can be connected together when additional drilling depth is required.

Features

• Adds 12″ of additional core drilling depth
• Heavy-duty steel construction
• Precision-machined threaded connections
• Helps maintain a stable, rigid core drilling setup
• Stackable for deeper coring applications
• Works with compatible wet and dry diamond core bits
• Available for common 1-1/4″-7 and 5/8″-11 core bit threads
• Ideal for deep-hole concrete and masonry drilling

Thread Options

1-1/4″-7 Male x 1-1/4″-7 Female
Standard 1-1/4″-7 diamond core bit extension for compatible core drills and core bits.

1-1/4″-7 Male x 5/8″-11 Female
Core drill extension and adapter for using smaller 5/8″-11 threaded diamond core bits with a 1-1/4″-7 connection.

Common Uses

These diamond core drill extensions are commonly used when drilling deeper holes through:

• Concrete
• Reinforced concrete
• Brick
• Block
• Masonry
• Stone
• Walls, floors, and foundations

Use one extension for an additional 12″ of reach or connect multiple core drill extension rods when greater drilling depth is needed.

Questions? 800-350-8665