Solid Carbide Drills GS / HGS
¢ General Features The GS and HGS styles (Super MultiDrill) are solid carbide drills that employ a new flute design and wide chip pocket to achieve excellent chip control and evacuation. DEX coating enables long, stable tool life over a wide cutting range, with various work materials and applications.
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Coating
¢ Features and Applications
Long tool life New cutting edge design and special DEX Coating provide long tool life for a wide variety of work materials. Stable chip evacuation New flute shape significantly improves chip control and evacuation. Quiet cutting and stable cutting force Stable drilling with little wobble even in small machine applications. Environmentally friendly Also compatible with the MQL (Minimum Quantity Lubrication) system.
Wide chip pocket for smooth evacuation of chips generated inside.
*"J flute" is a registered trademark.
HGS
GS
¢ Product Range
Coolant Supply
Diameter Range (inch)
Cat. No.
Hole Depth (L/D)
MDW GS2
up to 2
External (GS)
ø.0394 to ø.7874
MDW GS4
up to 4
MDW HGS3
up to 3
ø.0591 to ø.7874
Internal (HGS)
MDW HGS5
up to 5
MDW HGS8
ø.0591 to ø.6299 up to 8
¢ Performance
Chip control
Comparison of Cutting Force
GS
Conventional Tool
GS
Conventional Tool
(N)
Increase near end of hole
1,800
Thrust
1,400
1,000
Torque
600
0
Hole Entrance Hole Exit
Hole Entrance Hole Exit
(N)
200 150 100 50
Amplitude Width
XY Force
0
-50 -100 -150 -200
Hole Entrance Hole Exit
Hole Entrance Hole Exit
GS provides stable drill behaviour throughout the drilling process
Compact chips
Tool: MDW0800GS4 Part Material: 1049 Steel (200HB) Cutting Conditions: v c =262sfm,
f =.0098inch/rev, H =.9449inch, external coolant supply (water soluble)
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