BORDO Reduced Shank HSS 3/8″ Shank Metric

Reduced shank HSS twist drill.
118° notched point with 30° helix.
Notched point is a variation on the standard chisel point, providing faster starting and reduced drill wander.
118° point angles are ideal for use in materials such as mild steel and cast iron.
The 118° point creates easily controlled chips which are wide and thin.
Bordo reduced shank HSS drills are ground and then a black finish is achieved by steam tempering, a thermal process resulting in a porous tool coating.
This surface aids chip flow and heat dissipation.
The drill is then ground a second time to achieve a bright finish on the shank and cutting edges.

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BORDO White Band HSS-Co TiAlN Cast Iron Drilling

Bordo Metric White Band HSS-Co TiAlN Coated Twist Drills for Cast Iron.
DIN338
118° / 70° DX point with two helical flutes with 33 degrees of helix angle.
A highly abrasive material with damping and thermal conductivity, high strength and resistance to wear. Cast Iron is used extensively for mass produced components.
The White Band Series is designed for this specific purpose. TiAlN coating increases tool surface hardness to 87Rc.
For machining materials with Hardness < 300 HB : Tensile Strength <10900 N/mm2.

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1/4″ hex shank facilitates fast tool loading in cordless impact drivers and quick change adaptors.
One piece solid core design is significantly more durable than the conventional two piece design that utilises a hex sleeve on a standard round drill bit.
135° split point delivers a precision start and prevents bit wander for fast, accurate holes.
Premium quality M2 HSS ensures extreme performance and long bit life.
Bordo Impact Bits are designed and manufactured for optimum performance in modern impact drivers.
Not only do they offer significantly increased bit life in impact applications but they also offer exceptional performance in standard driving usage.
The impact driver action places high peak torque demands on both insert and power bits.
Our range features a uniquely engineered torsion zone with multi-stage hardening and tempering to dissipate damaging peak loads.

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Bordo Metric Yellow Band HSS Twist Drills for Aluminium and its alloys.
DIN338
130° web thinned point with two helical flutes with 35 degrees of helix angle.
The alloying elements which achieve varying Aluminium Alloys have an effect on the machining properties of these materials.
This generally creates a difficult long chip formation and material which has tendencies to stick to the tool, placing a unique set of demands on tooling. Yellow Band Series contends with these difficulties.
For machining materials with Hardness < 200 HB : Tensile Strength <700 N/mm2.

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