The Proxxon MICRO-Combispeeder combination spanner is an extra long design with a swivelling ring action of up to 90°. The self positioning action of the ratchet ring offers extreme ease of use. The spanner's flexibility is probably unmatched anywhere making it the right choice for difficult tasks in tight locations. MICRO-Combispeeder 6 piece set comprises one each 10, 13, 16, 17, 18 and 19mm of the long version, in a sturdy powder coated steel box. Professional quality with a 2 year guarantee.