This fantastic starter set gives you everything you need to drill circular holes in soft and hard wood without effort the set includes 7 high quality pieces with a long lifespan features universal use long service life fast sawing progress for clean round and precise holes includes diameter 35 x 51 x 68 mm including quick lock adapter up to 30 mm quick lock adapter 32 210 mm 1x hm 1x hss centering drill and angle pin wrench quality level plus recommended for