Page 105 - HOLE MAKING CATALOG p185-310

USER GUIDE GUNDRILLS

Wide Flute Angle Brazed Body
• Smooth chip evacuation

Large Oil Hole Steel Body Tool Flange

• Efficient lubrication • Extremely high rigidity • Superior rigidity for
• Longer life of inserts and guide pads • Simple direct mounting setup higher speeds and feeds

Drilling Process on Machining Centers 1 Drill a 15 mm pilot hole flat bottom
15
and Lathe Machines
1 Drill a 15 mm pilot hole D ++00..0053 flat bottom 2 Slow rotation and feed while entering to the pre-hole
2 Set the TRIDEEP drill into the pilot hole

(10 mm depth). Vc=5-10 m/min f=0.5-1.0 mm/rev
3 Initial cutting at a 25 mm DOC (80% feed rate),

verify activated coolant (Vc=100%).
4 In case of through hole, drill the full

hole to a depth of +5 mm.
5 Retract with slow rotation (5-10 m/min).

10
3 Maintain for 2-3 seconds and activate the cooling system

25

4 Drill +5mm depth through hole

5

289