ADO 40D 50D
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Carbide long drills with oil holes

5 25° helix angle optimal for ultra-deep-hole drilling

R Gash Unique R gash geometry enables super low cutting resistance and exceptional chip control New flute specification New flute specification with smooth chip evacuation and high tool rigidity qualities ideal for ultra-deep-hole applications Highly rigid 25°helical flute Breaks chips into small and manageable pieces with superior chip evacuation capability Competitor (Straight Gash) HI Chips are curled tightly with no elongation Chips are loosely curled and are prone to elongation EgiAs Coating EgiAs coating with high toughness and wear resistance characteristics Constructed with extreme...

Drilling | Solid carbide | 40xD Tolerance of the point angle is 140° First choice in quality and performance 2 flute carbide drill with internal coolant, EgiAs coating Up to 40xD 6 sizes Drilling | Solid carbide

Drilling | Solid carbide | 50xD Tolerance of the point angle is 140° 0° -4° ■ First choice in quality and performance ■ 2 flute carbide drill with internal coolant, EgiAs coating ■ Up to 50xD ■ 5 sizes

CUTTING DATA Low Cutting Force (N) 640 Size: Ø 3 Work Material: SCM440 (82~90HRB) Cutting speed: 80m/min (8493min-1) Feed: 1.188mm/min (0,14mm/rev) 25° Helix Angle Optimal for Ultra-Deep-Hole Drilling Breakage Spindle load voltage Helix Angle 20° Insufficient helix angle causes clogging of chips and tool breakage Start of processing Spindle load voltage Drilling | Solid carbide Spindle load voltage Cutting Data Helix Angle 25° Stable performance Low rigidity leads to unstable processing Unstable Size: Ø 6x50D Work Material: SCM440 (82~90HRB) Depth of Hole: 300mm

First Step: pilot hole at depth of 40mm Cutting Time ADO-50D After drilling 256 holes 265 Holes Still Running 65 Holes Wear and replacement

CUTTING CONDITIONS Drilling | Solid | Cutting conditions Carbon Steel Alloy Steel Alloy Steel Cast Iron Cutting Conditions Drilling | Solid carbide Stainless Steel 1. The indicated speeds and feeds are for drilling with water-soluble coolant or MQL (mist drilling in stainless steels is not recommended). 2. Water-soluble high density coolant (20-30 times dilution) is recommended. 3. When using non-water-soluble coolant, set the cutting speed between 70-100% of the lowest limit. 4. Make a pilot hole before using in accordance with the recommended operation. 5. A clogged oil hole can lead to...

©ADO-5D/ADO-TRS-5D Make a pilot hole with the ADO-5D or ADO-TRS-5D. ADO-40D/ADO-50D ADO-5D/ADO-TRS-5D(140°) The ADO-5D and ADO-TRS-5D (140°point angle) are the recommended - pilot hole drills of the ADO-40D/50D. © (n)300~500min-’ Insert the long drill into the pilot hole with a low speed reverse (revolution of about 300 to 500 min-1 (n). © Increase the revolution to the designated speed and start drilling. ♦ When working on a curved surface, use the ADF (carbide flat drill) to counterbore a flat surface before drilling a pilot hole. If it is difficult to process or if the straightness of...

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