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Metal Drilling
BOSCH Professional Drilling
TITANIUM
COBALT
Black oxide heat treatment
Applications: Designed for general
purpose heavy-duty drilling in carbon
and alloy steels,
aluminum, soft cast
iron, wood, wood composites
and
plastic. Available in jobber length,
stubby length, extended length
(aircraft), 3/8" reduced shank,
1/2" reduced shank
(Silver & Deming).
• Reduces friction between bit
and workpiece.
• Extends drill bit life.
Speed Helix
•
Faster penetration, easier drilling,
reduced heat.
• Extended drill bit life, extended
cordless battery life.
135° split point
• Starts drilling on contact.
• No walking or skating.
• No center punch required.
Cobalt
Applications: Designed for
heavy-duty drilling in hardened
stainless steels, cast iron and
titanium. Available in jobber length.
• Cobalt formulation provides
overall bit hardness of 66-68 HRC
for penetration of very tough,
abrasive materials.
• Able to withstand very high
temperature drilling applications
for extended periods of time.
• Under high drilling temperatures,
bits stay sharper longer than
standard HSS.
• Thicker web increases rigidity
in hard materials.
135° split point
• Starts drilling on contact.
• No walking or skating.
• No center punch required.
Titanium coating
Applications: Designed for
repetitive heavy-duty drilling in
common stainless steels, carbon
and alloy steels, aluminum, soft
case iron, wood, wood composites
and plastic. Available in jobber
length with 3/8" reduced shank.
• Dramatically reduces heat
and friction between bit and
workpiece, making bits last up to
6X longer than standard HSS bits.
• Allows faster drilling speeds.
• Surface hardness in excess of
80 HRC to penetrate tough
materials, including common
stainless steels.
Speed Helix
• Faster penetration, easier drilling,
reduced heat.
• Extended drill bit life, extended
cordless battery life.
135° split point
• Starts drilling on contact.
• No walking or skating.
• No center punch required.
BLACK OXIDE
Material Chart
Wood
Plastic
Light gauge
metal
High carbon
steel
Aluminum &
alloy steel
Cast iron
Stainless
steel
Legend
✔ Recommended
✔ OK to use
✔ Not recommended
Titanium
Black oxide
Cobalt
✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔
✔ ✔ ✔ ✔ ✔ ✔ ✔