Additional information
| Set | 12pc, 19pc, 25pc, 111pc |
|---|
BORDO Bright HSS Jobber Drill Set
- 118° Split Point (crankshaft point).
- 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.
Related products
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Delta Point Bright Finish HSSBORDO Delta Point Bright Finish HSS Metric
- Bordo Metric Delta Point M2-HSS Twist Drills.
- DIN338
- Delta Point drills have a multi-faceted cutting tip.
- Rather than try and modify existing point types, or tweak the grind angles, Delta Point tip design required a revolutionary re-think of drill tip function.
- The overall length of the cutting edge significantly exceeds that of conventional drills.
- This means more edge doing the cutting and the results are simply extraordinary.
- Drilling times for a range of split point and Delta Point drills consistently showed that Delta Point bits were twice as fast in mild steel.
- During independent lifetime testing Delta point drill bits averaged 609 holes in 20mm mild steel, ten times more holes than split point drills.
- DRILLS FASTER LASTS LONGER.
- 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 Green Band HSS-Co TiN Carbon Steel Drilling
- Bordo Metric Green Band HSS-Co TiN Coated Twist Drills for Carbon Steel.
- DIN338
- 130° split point with two helical flutes with 33 degrees of helix angle.
- The machinability of different carbon steels is as varied as their properties. Soft-tough construction steels place a unique set of demands on the tools.
- The Green Band Series of drills and taps have been developed specifically for this range of steels.
- For machining materials with Hardness < 250 HB : Tensile Strength <900 N/mm2.
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Colour BandBORDO 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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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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