What is this extension used for?

This 140 mm extension increases the reach of hole saws, auger bits, or driver bits in hard-to-access areas.

What shank and receiver size does it feature?

It features a 7/16" hex (11 mm) shank and receiver, designed for compatible tools and hole saw arbors.

Are tools required to change bits or hole saws?

No, the Quick-Lock mechanism allows you to change compatible 7/16" hex accessories quickly without any tools.

Is this extension compatible with other brands?

Yes, it fits Milwaukee accessories as well as bits and hole saw arbors from other brands with a 7/16" hex shank.

MILWAUKEE 4932479493 Quick-Lock extension piece 140mm 7/16" hex

Name: MILWAUKEE 4932479493 Quick-Lock extension piece 140mm 7/16" hex
Brand: MILWAUKEE
SKU: 08083399
Price: 17.95 EUR
Availability: PreOrder

Supplier number: MILWAUKEE 4932479493 | EAN 4058546372873

Recommended Retail Price €37.51

17.95 tax incl.

€14.83 excl. VAT (incl. all environmental contributions)

On order: delivered from 08/10/2026

Delivery by DHL

✆ Talk to a specialist

How does it work?

Buy Milwaukee products with a total order value of at least €250 excl. VAT.
For a total order value of €250 excl. VAT up to but excluding €500 excl. VAT, you receive a FREE Milwaukee 12-piece Tri-Lobe screwdriver set (4932472003) worth €55.90.
For a total order value of €500 excl. VAT up to but excluding €750 excl. VAT, you receive a FREE Milwaukee M18 125 mm Random Orbital Sander cordless random orbital sander (4933464228) worth €168.90.
For a total order value of €750 excl. VAT or more, you receive a FREE Milwaukee M18 FUEL 125 mm cordless angle grinder with slide switch and brake worth €357.90.
The free item is automatically added to your order. No registration is required.
This promotion cannot be combined with the ongoing Milwaukee Cashback Promotion on Milwaukee hand tools. An invoice for which you receive a free Buy More, Get More gift therefore cannot also be submitted for the Milwaukee hand tools cashback promotion.
The promotion is valid from 01.10.2026 to 31.10.2026.
Milwaukee Buy More, Get More deals are recognisable by the promotion label on the product page. Click the label to view all available deals.

Extended reach with Milwaukee Quick-Lock

Practical benefits

Access tight working spaces: The 140 mm length allows you to drill deeper and reach confined work areas with ease.
Fast tool-free changes: The Quick-Lock mechanism ensures rapid, secure insertion and removal of your hole saws and drill bits.
Reliable torque transfer: A sturdy 7/16" hex shank prevents slipping in the chuck and delivers dependable power during heavy-duty drilling.

In a nutshell

The right choise for

With the Milwaukee Quick-Lock 140 mm extension, you easily extend the reach of your hole saws, auger bits, or driver bits. It is ideal for drilling deeper through thick wooden beams, floors, or metal structures, as well as making pipe penetrations in hard-to-reach areas. The integrated Quick-Lock mechanism allows you to change compatible accessories quickly and completely without tools. Thanks to the sturdy 7/16" hex shank and receiver, it prevents slipping in the drill chuck and delivers dependable power transfer, all while keeping your chuck from hitting the workpiece surface.

Product information FAQ

€17.95

tax incl.

Key features according to our expert

Product description

Milwaukee QUIK-LOK arbor system is a universal fit arbor system for fast holesaw changes. The system is universal therefore fitting all the Milwaukee holesaws plus most competitor brands of holesaws.
Available in both 9.5mm or 7/16" Hex ( 11mm) shaft to cope with holesaws from 14 - 210mm diameter. The 7/16"arbor is compatible with Quik-Loktools and accessory extensions
The Quik-Lokhole enlargement arbor allows the user to increase the size of an existing hole from 32mm up to 152mm, maximising job applications.
Quik-Lok: Saves Time / Increases Productivity / Fully Compatible

All Features

Overall length (mm): 140

Brand MILWAUKEE
08083399
EAN 4058546372873
Supplier number MILWAUKEE 4932479493

Frequently asked questions about this product

Answered by specialists

What is this extension used for?: This 140 mm extension increases the reach of hole saws, auger bits, or driver bits in hard-to-access areas.
What shank and receiver size does it feature?: It features a 7/16" hex (11 mm) shank and receiver, designed for compatible tools and hole saw arbors.
Are tools required to change bits or hole saws?: No, the Quick-Lock mechanism allows you to change compatible 7/16" hex accessories quickly without any tools.
Is this extension compatible with other brands?: Yes, it fits Milwaukee accessories as well as bits and hole saw arbors from other brands with a 7/16" hex shank.