THROW-AWAY TYPE REAMER

摘要

PROBLEM TO BE SOLVED: To easily and accurately adjust a position of a tip. SOLUTION: A pressed surface 42 substantially orthogonal to the axial line of a tool body 32 is formed on the tool base end side of a tip 34 mounted on a tip mounting seat 33 of the tool body 32. A first screw hole 46 substantially parallel with the axial line of the tool body 32 is formed adjacently to the tool base end side of the tip mounting seat 33. A screw 47 for adjusting a position in the axial line direction is screwed into the first screw hole 46 movably in the axial line direction. A pressing surface 48 substantially orthogonal to the axial line and for pressing the pressed surface 42 of the tip 34 is formed the end surface on the tool tip side of the adjusting screw 47. The tool body 32 is provided with an opening hole 50 that is opened on the tool outer peripheral side adjacently to the tool base end side of the first screw hole 46 and exposes the end on the tool base end side of the first screw hole 46 to the outside.