Split point is self centering and the short distance from the drill axis to the outer corners results in faster penetration, reducing the need for end thrust.
The 135° point should be used to cut harder steel materials especially in deep hole applications.
In these situations it will produce thicker chips minimising work hardening of the cavity.
Faster penetration reduces abrasion and friction along the cutting edges.
Cobalt HSS Twist drills are extremely hard and provide superior performance and increased tool life especially in stainless steel and high tensile steel.
Bronze Finish (gold oxide) surface treatment. The metallic brown coloured low temperature temper treatment is normally only used on cobalt tools for identification purposes.
These Rotary Only ceramic tile drills provide outstanding performance and extended tool life in hard ceramic materials.
Unique cutting edge geometry in conjunction with high temperature brazing to ensure reliable and accurate drilling in multiple hole applications.
Use of water cooling will extend bit life.
Although these drill bits are not recommended for drilling vitrified porcelain, their superior multi-facet tungsten carbide tip enables them to drill most materials of this type, albeit with a reduced tool life.
These ceramic tile drills can also be used to successfully drill in brick, concrete and other masonry materials.
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The Bordo range of Self Feeding Wood Bits are ideal for drilling large diameter holes in soft woods for plumbing and conduit penetrations and a wide variety of other applications.
7/16″ hex shanks to suit drills with 1/2″ (or larger) chuck.
Precision milled shank which eliminates wobble and runout.
Spurs on the outside diameter cut holes cleanly and accurately.
Dual inside cutting planes shave hole radius for clean, smooth holes without pressure.
Fored in one piece from high carbon steel for maximum strength under the toughest drilling conditions.