Bosch has traditionally made very good accessories for drilling and cutting. This past week they began touting their newest Bulldog Xtreme and Bulldog rotary hammer bits from Bosch. The
Bulldog Xtreme bits are designed for both precision and durability – even when used in reinforced
concrete or harsh aggregate. To handle lightweight and normal weight concrete, Bosch’s Bulldog rotary hammer bits are optimized for pure speed. Bulldog Xtreme bits
are utilize a solid-head carbide design that should last longer when encountering things such as rebar. At the same time, they are fast. With less carbide
wear, you get more bang for your buck.
Bosch claims a unique and
proprietary diffusion-bonding technology which uses a high-heat, high-pressure
solid state welding process. This bonds the steel and carbide in a way that, the company says, is much stronger than traditional methods. The design ensures that the
solid-carbide head doesn’t break off when you strike aggregate or encounter rebar (and presumably switch to Bosch’s Rebar Cutting bits).
A centric conical tip
guides the bit and results in rounder holes, which helps when setting anchors or fasteners. Bosch also incorporates a wear mark to alerts you
when the bit has worn to a level where it’s no longer precise. The
overall flute of the bit is designed to enhance dust removal and also reduce operating
temperature and bit stress during use. The new Bulldog Xtreme bit sizes
range from 3/16″ to 1-1/8″ diameter.
Now, when you want pure speed, Bosch developed the Bulldog SDS-plus rotary
hammer bits. They use vacuum brazing and an induction-heat hardening
process to ensure fast drilling in light- or normal-weight concrete and block. The four-flute
design of this bit reduces friction points between it and the concrete and thus helps the
bit run cooler and with less stress. It also practically pulls dust out while it drills. The Bulldog SDS-Plus bits
range in size from 5/32″ to 1″ diameter and you can get them in lengths between 4″ and 39″.
“New Bosch Bulldog
bits do more than simply drill holes in all kinds of concrete. They’re the only
bits optimized for the newest generation of Bosch Bulldog rotary
hammers, so they optimize the user’s entire drilling system. They’re
longer lasting, stronger and faster than the previous generation of
bits. Bulldog bits make a strong contribution to a concrete drilling
system that’s as precise as it is tough.”
- Andrew Pompei, product manager, Bosch Accessories
Bosch Bulldog Xtreme
and Bulldog rotary hammer bits are available now at distributors and
home centers. To learn more or to find a local dealer, visit www.boschtools.com.