Milwaukee
Milwaukee Tool 1-1/4 F - 5/8" M Bit Adapter
- SKU:
- MLW48-17-6005
- Availability:
- Usually Ships Same Day
- Weight:
- 1.21 LBS
Description

DUTY®
1-1/4 in F to 5/8 in M
Core Bit Adapter
Connect a compatible 5/8 in–11 core bit to the MX FUEL handheld core drill’s 1-1/4 in–7 spindle.
Product Overview
The 48-17-6005 adapter connects a compatible 5/8 in–11 core bit to the MX FUEL handheld core drill. Its female end fits the tool’s 1-1/4 in–7 spindle.
Match both thread diameters and pitches before assembly, then confirm the core bit remains within the drill’s capacity. This adapter does not replace the cutting bit or the power tool.
- Tool-side connectionFemale 1-1/4 in–7 thread fits the specified spindle.
- Bit-side connectionMale 5/8 in–11 thread accepts a compatible core bit.
- MX FUEL applicationFor the specified MX FUEL handheld core-drill setup.
- Smaller-thread bitsAdapts the spindle connection for the smaller bit thread.
Technical Specifications
- Model
- 48-17-6005
- Accessory type
- Core-bit adapter
- Tool family
- MX FUEL handheld core drill
- Tool reference
- MXF301
- Female thread
- 1-1/4 in–7
- Male thread
- 5/8 in–11
Choose the Correct Fit
Verify the core-drill model and both mating threads before ordering; check diameter and pitch, not just the nominal connection size.
Confirm that the core bit and complete setup remain within the drill’s operating limits and suit the work material.
Installation & Care
Remove the battery before changing the adapter or core bit. Secure the threaded assembly as directed in the drill manual.
Inspect threads for damage and contamination before use. Use the specified wrenching surfaces when loosening the assembly rather than forcing the bit.
Small Details. Big Jobsite Energy.
Get set. Stay focused. Make your next move count.
THE NEXT JOB.
Ask Willy:
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Important Product Questions
Which connections does it provide?
It connects the tool’s 1-1/4 in–7 spindle to a compatible 5/8 in–11 core bit, with female threads at the tool side and male threads at the bit side.
Is a core drill or cutting bit included?
This listing is for adapter 48-17-6005. It does not identify a complete core drill or cutting bit as included.
What must I verify beyond the thread sizes?
Check the exact core-drill model, permitted bit diameter and operating setup. The adapter changes the thread interface, not the tool’s rated capacity.