Bosch PRO SDS Plus-5X Hammer Drill Bit, 10 x 1000mm

The Bosch PRO SDS plus-5X hammer drill bit, 10mm diameter with a 950mm working length and 1,000mm overall length, is £10.43 at Amazon.
Its made for efficient drilling in concrete and reinforced concrete, for example during installation work such as electrical installations or other internal fittings. The long length makes it useful for drilling through thick walls.
Bosch says it lasts up to 1.5 times longer than its SDS plus-1 drill bit, and it fits all SDS plus rotary hammers. You get one bit in the box.
Its 4,900 in DIY & Tools on Amazon and rated 4.6 out of 5 from over 1,300 ratings. Stock was limited when posted.
Sold by Amazon. Free delivery for Prime members or on qualifying orders.