Bosch RHA-50 SDS-Plus Right Angle Attachment 90 degree angled attachment for Bosch SDS-plus hammers allows for drilling in concrete in hard to reach places Attachment can be rotated 360 degrees on the tool to obtain the correct working position Fits most newer Bosch corded SDS-plus rotary hammers: 11253VSR, 11255VSR. RH228VC, RH328VC and cordless models RHH181-01, 11536-C and 11536VSR Does not fit Bosch models 11250VSR, RH328VCQ, RH432VCQ