Bosch OSC3C OIS Three Blade Cutting Pack OSC312F: 3-1/2-Inch by 7/8-Inch BIM flush cut blade, can be used to cut wood or metal OSC312: 3-1/2-Inch by 7/8-Inch HCS wood round blade, for wood cutting only, generally used to trim door jambs or cut drywall OSC118F: 1-1/8-Inch BIM plunge blade, can be used for cutting wood or metal (nails and staples) Includes: OSC312F, OSC312, OSC118F, and adapter