Bosch compact bit set 12 piecethe ideal bit set that's durable and features a bit set and bit holder, the compact bit set from bosch is compatible with the most common screwdriving applications. With 12 bit heads, this extra strong and reliable bit set comes housed in ultra robust and compact packaging.features durable and reliable bit set compatible with most common screwdriving applications and tasks kits include set 1 includes 1 x t8,1 x t10, 2 x t15 2 x t20 2 x t25 1 x t27 1 x t30 1 x t40 1 magnetic universal holder set 2 includes 1 bit holder, 11 bits ph1 ph2 ph3 pz1 pz2 pz3 t10 t15 t20 t25 t30 set 3 includes 1 bit holder, 11 bits ph1 ph2 ph3 pz1 pz2 pz3 t10 t15 t20 t25 s0,6x4,5 s0,8x5,5 set 4 includes 1 bit holder, 11 bits ph2 pz2 t10 t15 t20 t25 s0,6x4,5 s0,8x5,5 hex3 hex4 hex5buy bosch workshop from chain reaction cycles, the world's largest online bike store.