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Learn more by watching our Pro lock TS08-EXT300LK7 | 300mm 1/4in Electricians 7 Piece Locking Extension Bar Kit video.
Additional related video.
Additional related video.
The Pro lock TS08-EXT300LK7 is a seven-piece electrician's extension bar kit for 1/4in impact drivers, rated for drill bit extensions up to 1,500mm total reach. The TS08-EXT300LK7 locks segments together securely and is designed for working in tight wall cavities and ceiling spaces without losing sections inside the cavity.
Electricians often face restricted access in ceiling cavities and stud work where standard drill bit length is insufficient. The TS08-EXT300LK7 solves this by adding reach without requiring longer drill bits or alternate tools. Each segment locks together with a secure locking collar mechanism and the slim 32mm diameter fits through 15mm wall cavities and narrow spaces. The seven-piece kit provides maximum reach flexibility for jobs ranging from single-segment extensions through full 1,500mm stacks.
Trade buyers value this kit for its locking security — bars stay connected even under impact driver vibration — and quick setup on the job. The high carbon steel construction handles repeated assembly and teardown, and bars can be mixed and matched with other 1/4in tools. The included 25mm spade bit and 7/16in hex adaptor cover common drilling tasks out of the box, and the heavy-duty carry case keeps the kit organised between jobs.
The Pro lock TS08-EXT300LK7 is not suitable for overhead drilling over long periods without support, and the locking mechanism requires hand-tightening between segments to maintain security. Do not use extension segments with faulty locking collars or visible cracks in the steel shaft.
Verified Sparky Direct customer reviews: Pro lock TS08-EXT300LK7 (TS08-EXT300LK7)
"Simple but effective, no competitive product to compare." — Tyson
"Solid locking although I recommend tapping it to be sure." — James
"Very useful and easy to use, saved lots of time." — Larry
(TS08-EXT300LK7)
Five 300mm segments lock together for a total reach of 1,500mm. The TS08-EXT300LK7 can be used with individual segments alone or combined as needed for shallower cavity work, and the included 7/16in hex adaptor lets you extend further with compatible tools if required.
The locking collar mechanism on the TS08-EXT300LK7 holds securely under impact driver vibration. Hand-tighten the collar between segments before each use. Many users recommend tapping the joints with a hammer if working in particularly restrictive cavities for added assurance.
Yes, the TS08-EXT300LK7 is compatible with all 1/4in hex drive bits and tools including twist drills, spade bits, hole saws, and augers from any manufacturer.
The 32mm diameter slim profile of the TS08-EXT300LK7 fits through 15mm wall cavities and ceiling spaces where thicker extensions cannot pass. This allows navigation through restrictive residential stud work and suspended ceiling cavities.
The TS08-EXT300LK7 kit includes five 300mm lockable extension bars, one 7/16in hex adaptor, one 25mm TurboBORE spade bit, and a heavy-duty plastic carry case. You'll need a 1/4in impact driver to use the kit, which is standard equipment for most electricians.
The TS08-EXT300LK7 is designed for horizontal and angled drilling in cavities and wall work. For extended overhead drilling, support the extension with your non-drill hand to avoid strain on the locking joints, especially when working above your head for prolonged periods.
The Pro lock TS08-EXT300LK7 is available from Sparky Direct, with Australia-wide delivery. Sparky Direct is an electrical wholesaler supplying 500,000+ customers with competitive trade pricing.
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These specifications and characteristics outline physical, mechanical, electrical details.
| Brand | Alpha |
| SKU | TS08-EXT300LK7 |
| Barcode # | 9313601018963 |
| Package Weight | 2.204kg |
| TYPE | VALUE |
|---|---|
| Type | Tools |
| Brand | Alpha |
| Material | High Carbon Steel |
| Diameter (mm) | 32 |
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