Solid Carbide Drills GS / HGS
¢ Features & Benefits Long tool life New cutting edge design and special DEX Coating provide long tool life for a wide variety of materials. Steady chip evacuation J Flute ® shape significantly improves chip control and evacuation. Stable drilling performance Unique thinning design promotes stabilized drilling. Environmentally friendly Also compatible with the MQL (Minimum Quantity Lubrication) system. MQL systems are designed to apply a very fine amount of high quality lubricating oil to metal cutting/machining operations. ¢ Product Range
J
Diameter Range (inch / mm )
Hole Depth (L/D)
MDW Cat. No.
up to 2 up to 4 up to 3 up to 5
MDW GS2 MDW GS4
ø.0394” to ø.7874” 1.00mm to 20.00mm
GS : Global Standard HGS : Global Standard with Coolant through Holes
MDW HGS3 ø.0591” to ø.7874” 1.50mm to 20.00mm MDW HGS5
ø.0591” to ø.6299” 1.50mm to 16.00mm
up to 8
MDW HGS8
¢ Diverse shank options for standard collet holders, and high end Shrink-fit/Hydraulic holders
HGS Metric Size Example
Product Code
Diameter Four digits (5mm)
DIN shank option Add “S”
Series
Style
Depth
Shank Size
5mm (.1968”) 6mm (.2362”)
HGS HGS
3 3
—
MDW0500HGS3
MDW 0 5 0 0
S
MDW0500HGS3S MDW 0 5 0 0
*Metric Sizes have four digit diameter callouts.
Two metric shank diameters available depending on your application, and tool holding. “S” = DIN shank
HGS Inch Size Example
Product Code
Diameter five digits (0.5000”)
DIN shank option Add “S”
Series
Style
Depth
Shank Size
33/64ths (.5156”) 14mm (.5516”)
HGS HGS
3 3
—
MDW05000HGS3 MDW 0 5 0 0 0 MDW05000HGS3S MDW 0 5 0 0 0
S
*Inch Sizes have five digit diameter callouts.
Fractional shank, and DIN shank available depending on your application, and tool holding. “S” = DIN shank
®
¢ Performance
*"J Flute ® " is a registered trademark.
Chip Control
Comparison of Cutting Force
GS
GS
Conventional Tool
Conventional Tool
(N)
Increase near end of hole
1,800
Thrust
1,400
1,000
Torque
600
0
Wide chip pocket for smooth chip evacuation.
Hole Entrance Hole Exit
Hole Entrance Hole Exit
(N)
200 150 100 50
Amplitude Width
XY Force
HGS
0
-50 -100 -150 -200
Hole Entrance Hole Exit
Hole Entrance Hole Exit
GS provides stable drill performance throughout the drilling process
Compact chips
Tool: MDW0800GS4 Part Material: 1049 Steel (200HB) Cutting Conditions: v c=262 SFM, f = .0098 IPR, H =.9449”, external coolant supply (water soluble)
J8
GS
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