Makita HR330 hammer drill with a 38mm drill diameter, with instruction manual. - Brand: Makita - Model: HR330 - Drill Diameter: 38mm - Included: Instruction manual, hammer drill, bit Thank you for viewing. This came up while I was organizing my father's belongings. There is some rust in places, but I think it should be usable without any problems. I turned on the power and confirmed that it works. I am a novice, so I do not know how to use it. Thank you.