This witte bit pack contains 10 25mm ph1 phillips tin bits witte bits are manufactured to be high reliable quality bits for use in industrial screw driving application wittes industrial bit program is convincing due to the broad and in depth range of products as well as their equally high quality based state of the art manufacturing methods the very hard tin coating ensures an ideal wear resistance the tin coating of these bits has a hardness in the range of 2800 hv especially suitable f