The Maible Tools 300mm Quick Change Bit Extension is the ideal accessory for tradespeople and DIYers needing extra reach without sacrificing speed or control. Designed for use with standard 1/4" hex shank bits, this extension is also perfectly compatible with the Maible Tools 1/4" Hex Shank Wood Spade Bit range, allowing you to drill deep, precise holes in timber with ease.

Its quick change locking mechanism ensures you can swap bits in seconds, while the heavy-duty steel shaft provides the strength and rigidity required for demanding drilling and fastening tasks. The slim profile makes it easy to work in tight or awkward spaces, whether on-site, in cabinetry, or during installations.

Key Features

  • Extra-Long 300mm Reach – Perfect for accessing screws and drill points deep inside panels, frames, or fixtures.
  • Quick Change Chuck – Securely locks bits for reliable torque transfer and allows one-handed bit changes.
  • 1/4" Hex Shank Compatibility – Works with all standard 1/4" hex bits, including Maible Tools Wood Spade Bits for extended reach drilling.
  • Durable Construction – Hardened steel shaft for long-lasting performance in high-torque applications.
  • Precision Machining – Smooth operation with minimal wobble for cleaner drilling and driving.
  • Slim Profile Design – Easily fits into confined work areas where standard extensions cannot reach.

Specifications

  • Length: 300mm
  • Shank Size: 1/4" hex
  • Bit Compatibility: Standard 1/4" hex shank bits, including Maible Tools Wood Spade Bits
  • Material: Hardened steel with corrosion-resistant finish
  • Mechanism: Quick change locking chuck

Applications

  • Extended reach drilling with Maible Tools 1/4" Hex Shank Wood Spade Bits for timber framing, decking, and cabinetry
  • Electrical, plumbing, and HVAC installations
  • Automotive and machinery repairs
  • Cabinet and furniture assembly
  • Accessing recessed fasteners in tight spaces

Whether you’re extending the reach of your wood spade bits or driving fasteners in hard-to-reach spaces, the Maible Tools 300mm Quick Change Bit Extension delivers the performance, strength, and convenience you need.

Q: Is it suitable for use with wood spade bits?
A: Yes—this extension is designed to work perfectly with Maible Tools 1/4" Hex Shank Wood Spade Bits, allowing deep drilling without losing control or stability.

Q: Will it work with an impact driver?
A: Absolutely—it’s impact-rated and works with drills and drivers that accept 1/4" hex accessories.

Q: Does the bit lock securely?
A: Yes—the quick change chuck ensures bits are firmly held in place to prevent wobble or slippage.

Q: Can it be used with other bit types?
A: Yes—it’s compatible with all standard 1/4" hex shank screwdriver, drill, and specialty bits.

All products must be installed by a licensed electrican. DIY electrical work is illegal and very dangerous.

Change of Mind
All products purchased from MJS Electrical Products & Supplies are backed by a thirty (30) day Peace of Mind Return Policy. All products returned must be in perfect unused condition, with all components, complete with original packaging. We will not allow returns on damaged or incomplete products. Proof of purchase is required. Should the product not be in original condition, please contact us before returning it as this may save you some unnecessary costs.

Damaged / Faulty Goods
If you find that the goods were damaged in transit or were faulty in some manner, please contact us within 24 hours of receiving the goods. We will organise for the return of the goods and arrange a credit towards your next purchase or send a replacement product. Customer will incur the cost of return postage and be credited the purchase price only. We recommend that you return your unwanted items using registered post or trackable courier. We can not be held responsible if returned items are lost in transit.

Warranties
Product warranties are governed by the respective manufacturers and / or suppliers warranty terms and conditions (available on request). We will not be liable to you or any third party for any loss suffered due to product failure. We will process product warranty claims through the respective manufacturers and/or suppliers. All warranties are void if the product is not installed by a licensed electrician.

PRODUCT INFO
SKU EXTB300
Model # EXTB300
Barcode # 5061079190066
Brand Maible
SHIPPING INFO
Shipping Weight 0.1900kg
Shipping Width 0.640m
Shipping Height 0.025m
Shipping Length 0.395m