BAHCO Extension Shafts 330mm
- 330 mm long extension shaft
- 9525-7 for max shank Ø7mm
- 9525-10 for max shank Ø10mm
- Two locking screws for fastening your drill
- Supplied with hex key
- Lacquered for rust protection
SKU: 9525
Categories: Drill Bits, Specialist
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IMPACT Hex Shank HSS Twist Drills
BORDO IMPACT Hex Shank HSS Twist Drill
- 1/4″ Hex Shank Twist Drill for Impact Drivers.
- 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.
- Specifically engineered for use in impact drivers these bits are also fully compatible with conventional rotary drills.
- 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.
- 1/4″ hex shank facilitates fast tool loading in cordless impact drivers and quick change adaptors.
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Bit Sets
BORDO IMPACT Hex Shank HSS Twist Drill Set
- 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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Specialist
BORDO Stub Drills Black HSS Metric
- Stub drills (screw machine twist drills) have a shorter overall length than Twist drills for maximum rigidity and longer tool life.
- 135° Split Point (crankshaft point).
- 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.
- They are designed primarily for machining operations in lathes (screw machines) but can also be used in manual hand held drills.
- Bordo Stub Drills have two helical flutes with 30 degrees of helix angle. This provides fast chip ejection and very stable drilling operation.
- Black Finish Stub Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating.
- Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.
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Colour Band
BORDO Yellow Band HSS Aluminium Drilling
- 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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