You will receive 3 x titanium staged drill hss4241 1 x 4 12 mm 5 stages 1 x 4 12 mm 9 stages 1 x 4 20 mm 9 stages 3 x titanium milling drill hss4241 1 of each 5 mm 6 mm 8 mm 1 x quick change bit adapter a complete set for working in metal wood and plastic the titanium nitrate coating makes the drill bits last up to 6 times longer than normal drill bits the drill bits have been designed with a specialist geometry which ensures they have the best drilling deburring and