Hole Finishing Reamer Custom Solution Capabilities Reamer Troubleshooting Problem Cause Possible Remedy 1. Reaming tool running out of centre. • Use equalising adaptor. Hole diameter too large 2. Concentricity of pilot hole and ream • Re-align, use floating head. machining unsatisfactory. • Change cooling lubricant. 3. Built-up edge. • Change cutting speed. 4. Unsuitable cooling lubricant. • Measure reamers and 5. Reaming tool diameter too large. send for repairs. Nom diameter 1. Reamer worn. • Replace and refit tool. Hole diameter too small 2. Unsuitable cooling lubricant. • Change cooling lubricant. 3. Reaming allowance too small. • Increase reaming allowance. Nom diameter 1. Concentricity of pilot hole and • Re-align, use equalising adaptor. Conical hole profile wider towards drill runout reaming unsatisfactory. • Correct positioning accuracy. 2. Positioning accuracy of pilot hole to reaming. Nom diameter 1. Concentricity of pilot hole and • Re-align, use floating head. Conical hole profile wider at drill entry point reaming unsatisfactory. • Securely clamp reaming tool axially. 2. Reaming tool skim cutting with ledger. Nom diameter (continued) W32 widia.com