Reamer Taper Pin 5 L.H. UTLR-254210

5 Flutes Cobalt Reamer Taper Pin for Flush or Protruding Head Fasteners. AND DRILL BAR IN TITANIUM FOR FLUSH FASTENERS. STEP 2. TAPER REAM AND COUNTERSINK: See ‘Taper Lock Equipment’ in STEP 3. COUNTERSINK DIAMETER CHECK: For normal surfaces, use Uni- See ‘Gage Selection’ chart for gage. See appropriate ‘Taper Lock Equipment’ section STEP 5. HAND REAMING: Finish ream tapered holes by hand reaming with multi-fluted tapered reamer. When hand reaming, alternate straight and spiral fluted UNITED Taper Pin Reamers ream holes for standard taper pin fits. Left hand Spiral and Straight flutes are primarily for hand reaming. Best results are obtained if hole is pre-drilled a few thousandths smaller than the small diameter of the finished reamed hole. Left hand Helix RH cut pushes chips forward in thru hole reaming Ream two-thirds the speed of drilling and Feed at 200%-300% higher than drilling to prevent chatter and reamer wear. Aim for perfect alignment of the Spindle, Reamer, Bushing and hole to be machined. Use UNITED’s Flex Driver Reamer Handles.