Drill style recommender – Darex XPS-16 Operating Instructions User Manual
Page 77

77
HSS, Standard Helix, 135-degree split
point
•
Cast Iron - Soft and Medium
•
Stainless steel
HSS, Parabolic Flute design, 135-degree
split point
– Effective in deep hole drill-
ing of depths 4 times the diameter of
the drill.
•
Aluminum alloys
•
Low to Medium Tensile Strength materials
HSS, High Helix 118-degree point
– En-
gineered with a high helix angle and
wide flute for improved chip ejection.
High helix drills are often used on mate-
rials that form chips that tend to weld
together and resist being carried up the
flutes. Specially designed for drilling
deep holes.
•
Aluminum
•
Aluminum alloys
•
Aluminum magnesium
•
Aluminum bronze
•
Zinc
•
Low Tensile Soft Steels
HSS, Low Helix 118-degree point
– Engi-
neered with a low helix angle and wide
flute to reduce grabbing on entrance
and breakthrough and to promote better
chip ejection.
•
Free Machining Brass
•
Plastics
•
Shallow holes in Aluminum
•
High Tensile Bronze
HSS, Standard Helix, 118-degree point
•
Bronze Soft and Medium
•
Copper
•
Copper alloys
•
Carbon Steel Low and Medium Alloyed
Cobalt HHS, Jobber length, 135-degree
split point
– These drills are heat resis-
tant and used for drilling tough, high
tensile strength materials.
•
PH stainless steel
•
Titanium
•
Inconel
•
High temperature alloys - Cobalt base - Iron
base - Nickel Base
•
Carbon Steel - low and medium alloyed
Cobalt HSS, Jobber length, wide land
Parabolic flute design, 135-degree split
point
– The wide land parabolic design
provides superior performance in a
greater range of materials and applica-
tions. Especially effective in deep-hole
drilling of depths 4 times the diameter
of the drill. Flute form produces closer
tolerances due to improved chip flow.
135-degree split point reduces thrust.
•
High Alloy Steels
•
Titanium
•
Inconel
•
PH stainless
Carbide-tipped, Standard Helix, Jobber
and Taper length 118-degree point
–
Features heavy-duty construction and
heat-treated body for optimum wear re-
sistance and support of the carbide tip.
Taper length is particularly advanta-
geous when length longer than a jobber
length is required.
•
Hard Cast Iron
•
Non-ferrous metals
•
Composites
*Not recommended for drilling Steel
Drill Style Recommender
Drill Style Recommender