Milwaukee
Milwaukee Tool 7-1/2" Extension for Thick Wall Core Bits
- SKU:
- MLW48-95-6085
- Availability:
- Usually Ships Same Day
- Weight:
- 2.08 LBS
Description

DUTY®
Thick Wall Core
7-1/2 in Extension
Add 7-1/2 in of reach to the matching 1-1/2–6 in thick wall core system using the correct adapter shank.
Product Overview
This steel extension adds 7-1/2 inches of reach to the matching 1-1/2–6-inch thick-wall core system.
Use 12- or 18-inch SDS-Max or spline adapters; the core body still sets cutting depth.
- Added working reachExtends reach by 7-1/2 in.
- Steel constructionBuilt for repeated coring.
- Matched core systemFor designated core bodies.
- Adapter fitUse the stated shank lengths.
Technical Specifications
- Added reach
- 7-1/2 in
- Material
- Steel
- Core wall
- Thick wall
- Core size range
- 1-1/2–6 in
- Hammer system
- SDS-Max / Spline
- Adapter lengths
- 12 or 18 in
Choose the Correct Fit
Match the extension to the thick wall core system and 1-1/2–6 in core diameter group. Confirm the complete setup’s hammer capacity.
Use the matching adapter: 48-03-3572/3573 for SDS-Max or 48-03-3564/3565 for spline. Check available working space and the added reach before assembly.
Installation & Care
Isolate the hammer before adding the extension. Clean and inspect the mating parts, then assemble them according to the core system’s instructions.
Stop as needed to remove the inside core during deeper drilling. After use, clear debris and inspect the extension for damage or bending.
Small Details. Big Jobsite Energy.
Get set. Stay focused. Make your next move count.
THE NEXT JOB.
Ask Willy:
Need help adding core-drilling reach? Send Willy the core diameter, wall style, adapter part number and required working depth.
Important Product Questions
Does the extension change the core bit’s usable cutting depth?
It adds reach to the assembly. The cutting body’s usable depth remains separate, so deeper holes still require removal of the inside core.
Will it fit a core system with the other wall style?
This extension is listed for thick wall cores. Select the extension assigned to the exact core and adapter system rather than relying on length alone.
What else should I check before extending the assembly?
Confirm the SDS-Max / Spline adapter connection, 12 or 18 in adapter-length choice, core diameter and the clearance for the longer setup.