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
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SpecialistBORDO 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 BandBORDO Blue Band Stub HSS-Co TiAlN Stainless Steel Drilling Metric
- Bordo Metric Blue Band HSS-Co TiAlN Coated Stub Drills for Stainless Steel.
- DIN1897
- Multi-faceted point with two helical flutes with 35 degrees of helix angle.
- The machining of stainless steels is difficult due to its work hardening properties, toughness and poor thermal conductivity, which places high demands on the cutting tools.
- They are designed primarily for machining operations in lathes (screw machines) but can also be used in manual hand held drills.
- The Blue Band – Stainless Steel – Series has been specifically designed to suit these difficult machining requirements.
- TiAlN coating increases tool surface hardness to 87Rc.
- For machining materials with Hardness < 350 HB : Tensile Strength <1250 N/mm2.
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Long Series HSSBORDO Long Series Black HSS Metric
- ANSI B94-11
- 118° chisel point with 30° helix.
- Chisel point is suitable for general purpose drilling.
- Black Finish Twist Drills (also called blue finish) achieve their distinctive colour by steam tempering, a thermal process resulting in a porous tool coating.
- This surface helps to keep lubricant on the tool, particularly important on the cutting edges, thus reducing friction and cold welding. The result is increased tool life.
- Black finish tools are generally recommended for ferrous applications where the oxide layer aids chip flow and heat dissipation.
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Extra Long HSSBORDO Extra Long Series Bright HSS Metric
- HSS Extra Long Twist Drill
- 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.
- Bright Finish Twist Drills have no surface treatment and are supplied in the as-ground condition. These tools are suitable for general purpose use, particularly for non-ferrous applications.
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