Additional information
| Size | No. 1, No. 2, No. 3, No. 4, No. 5, No. 6, No. 7, No. 8 |
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BORDO HSS Centre Drill
- Bright Finish HSS No.1 Centre Drill 118° / 60°
- Centre Drills are used with a lathe to centre drill stock for mounting in the lathe.
- They are designed to drill a small diameter pilot hole followed by a 60° countersink which provides a bearing surface for the 60° point of the lathe centre.
- Centre drills are also used extensively with milling machines to accurately start holes.
- The hole locations can be dialled in using the milling machine’s calibrated hand wheels.
- The hole is then started using the centre drill.
- The large diameter shank on the centre drill holds the drill point right on centre.
- Once the hole is started, the centre drill is replaced with a drill of the desired diameter and the finished hole is then drilled.
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Long Series HSSBORDO Long Series Bright HSS Metric
- ANSI B94-11
- 118° split point with 30° helix.
- Split point is self centering and reduces the need for end thrust. Friction at workpiece is reduced.
- 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.
- 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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Colour BandBORDO Blue Band HSS-Co TiAlN Stainless Steel Drilling Metric
- Bordo Metric Blue Band HSS-Co TiAlN Coated Twist Drills for Stainless Steel.
- DIN338
- 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.
- 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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Colour BandBORDO Red Band HSS-Co TiAlN Tough Treatable Steel Drilling
- Bordo Metric Red Band HSS-Co TiAlN Coated Twist Drills for Tough Treatable Steel.
- DIN338
- 130° UX point with two helical parabolic flutes with 33 degrees of helix angle.
- The mechanical properties of materials are influenced diversely by the addition of alloying elements and heat treatment processes, resulting in some high-strength, quenched and tempered steels or hardened steels.
- This range has its own unique set of machining requirements which are satisfied by the Red Band – Tough Treatable Steel – Series.
- TiAlN coating increases tool surface hardness to 87Rc.
- For machining materials with Hardness < 470 HB : Tensile Strength <1500 N/mm2.
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IMPACT Hex Shank HSS Twist DrillsBORDO 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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