Complex sentence: Partly due to the precision requirements of his locks, Brammah spend a lot of his time developing tools to assist him in various manufacturing processes, he relied heavily on the expertise of Henry Maudslay whom he employed in his workshop from the age of 18.
Split into simpler sentences: Partly due to the precision requirements of his locks, Brammah spent a lot of his time developing tools to assist him in various manufacturing processes. He relied heavily on the expertise of Henry Maudslay whom he employed in his workshop from the age of 18.