Boa launched the world's two first double-ended drill bits at Cologne last year - the Boa Combo and the Boa Flip drill bits.
The former combines the two most popular sizes (6mm and 8mm) in one tri-shank, vacuum-brazed bit. Aimed at the professional it will penetrate all tiles including grade 5 porcelain and has an rrp of £19.95.

The Flip bit is aimed at DIYers with a tubular shank carrying two vacuum-brazed cutting ends - the equivalent of two 6mm bits for an rrp of £9.99.

To meet demand Boa has expanded its manufacturing capability and both the Flip and the Combo are now made in the UK.