





Milwaukee 2" x 12" Diamond Premium Wet Core Bit Extension 48-17-4020
MAXIMUM DEPTH REACH FOR STRUCTURAL CONCRETE CORING
When the job requires penetrating thick structural slabs or deep footings that exceed standard bit lengths, the 48-17-4020 is the essential link in your coring rig. Engineered to handle the high-torque output of MX FUEL and corded core drills, this extension maintains concentricity and power transfer through the toughest reinforced concrete. Proper maintenance is key in these high-friction environments; always apply anti-seize to the 1-1/4"-7 threads to ensure easy breakdown after a long day of wet-cutting and slurry management.
- / Extends core bit drilling depth by a full 12 inches for deep-bore structural applications.
- / Precision-machined 1-1/4"-7 threads provide a secure, high-torque connection compatible with Milwaukee Premium Wet Core Bits.
- / Heavy-duty steel construction ensures minimal runout and maximum durability under extreme jobsite loads.
- / Optimized for wet-use environments, facilitating consistent water flow and slurry removal during deep-hole drilling.
TECHNICAL SPECIFICATIONS
| Overall Length | 12 in. |
| Thread Size | 1-1/4"-7 |
| Application | Wet Core Drilling Only |
| Material | High-Strength Steel |
| Compatibility | Milwaukee Premium Wet Core Bits |
WHAT'S IN THE BOX
(1) 2" x 12" Diamond Premium Wet Core Bit Extension (48-17-4020)
Original: $34.97
-65%$34.97
$12.24Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
MAXIMUM DEPTH REACH FOR STRUCTURAL CONCRETE CORING
When the job requires penetrating thick structural slabs or deep footings that exceed standard bit lengths, the 48-17-4020 is the essential link in your coring rig. Engineered to handle the high-torque output of MX FUEL and corded core drills, this extension maintains concentricity and power transfer through the toughest reinforced concrete. Proper maintenance is key in these high-friction environments; always apply anti-seize to the 1-1/4"-7 threads to ensure easy breakdown after a long day of wet-cutting and slurry management.
- / Extends core bit drilling depth by a full 12 inches for deep-bore structural applications.
- / Precision-machined 1-1/4"-7 threads provide a secure, high-torque connection compatible with Milwaukee Premium Wet Core Bits.
- / Heavy-duty steel construction ensures minimal runout and maximum durability under extreme jobsite loads.
- / Optimized for wet-use environments, facilitating consistent water flow and slurry removal during deep-hole drilling.
TECHNICAL SPECIFICATIONS
| Overall Length | 12 in. |
| Thread Size | 1-1/4"-7 |
| Application | Wet Core Drilling Only |
| Material | High-Strength Steel |
| Compatibility | Milwaukee Premium Wet Core Bits |
WHAT'S IN THE BOX
(1) 2" x 12" Diamond Premium Wet Core Bit Extension (48-17-4020)













