Taper Lock Drill for 100° R 4

UNITED's Taper Lock Cutters Cut Your Costs Too! UTLD-2030A was designed with a special 10º Helix for installation of 100º flush head Taper Lock bolts intended for drilling titanium, heat treated and hard alloys. A finished standard Taper Lock hole is produced. Does not require a pilot hole. Coolant holes are provided in durable high speed cutters. Taper Lock Drill 10º Helix with Coolant Holes SEQUENCE FOR USING ONE SHOT POSITIVE FEED EQUIPMENT AND STEP 1. DRILL/COUNTERSINK: Select proper tools from ‘Taper Lock STEP 2. BEARING/PROBE: Use UDB 756072 Series. See ‘Bearing STEP 3. COUNTERSINK DIAMETER CHECK: For normal surfaces use Uni-Lock Countersink Gage, and for normal or inclined surfaces, use UDB 756340 Series. See ‘Gage Selection’ chart for appropriate ‘Taper Ream STEP 4. PROTRUSION CHECK: For TL100 Series, use UDB 755624 Series for inclined surfaces or values listed in ‘Protrusion Gage’ section. STEP 5. TAPER SCRAPE HOLE: If necessary, use UDB 755758 Series. See ‘Re-Work of Straight Holes’ for appropriate Taper Scraper. Protrusion and bearing check must be made after this operation