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HSS SMART STEP combination tap bit
The short HSS combination screw tap with unique SMART STEP technology for highly precise drilling, thread cutting and countersinking/deburring in a single operation.
- Thread type: Metric thread
- Material to be processed: Non-ferrous metal, Steel, Cast metal
- Hole type: Clearance hole ≤ 1xD
- Quality: ZEBRA-Premium
- Suitable for machine type: Drill, Cordless screwdrivers, Pedestal drilling machine
- Shank diameter: 7.18 mm
- Cutting material: HSS
- Surface: Plain
- Shank style: Hexagon
- Tolerance of screw taps: ISO 2 (6H)
- Service life (points system): 2 of 4 points
- Trueness to gauge (points system): 4 of 4 points
- Versatility (points system): 2 of 4 points
- Cutting behaviour (points system): 3 of 4 points
- Chip formation (points system): 4 of 4 points
- Suitable for tensile strength up to: 600 N/mm²
- Material of sub-group: General structural steels, Non-alloyed tempering steels, Alloyed tempering steels, Nitriding steels, Tool steels, High-speed steels, Cast iron, Ductile iron, Malleable cast iron, Aluminium, Aluminium alloys, Aluminium wrought alloys, Aluminium casting alloys (<10% silicon), Copper, low-alloyed, Brass, long-chipping, Bronze, long-chipping, Plastics, thermoset, Plastics, thermoplastic
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Variants
3 in 1 - drilling, thread cutting and countersinking/deburring in a single operation
No tool change required, saving time and costs
The first combination screw tap with stepped drill bit tip geometry
- Work up to 100 % faster than with conventional HSS combination screw taps
- Optimal centring even when working on curved surfaces
- High-precision, perfectly circular holes provide the perfect foundation for high-quality subsequent thread cutting
- Effortless drilling
True-to-the-gauge through hole thread according to ISO 2 (6H)
1/4 inch hexagon mount
Prevents spinning in the drill chuck, ensures optimal power transmission and protects the drill chuck from damage
Product packaging made from 100 % PCR (recycled plastic from household waste) and 100 % recyclable
Available exclusively from Würth
- Generally only suitable for through hole threads with a material thickness of max. 1xD
- Countersinks according to DIN74-1 for countersunk head screws (according to DIN 7991) are not possible
- For use in cordless drill drivers, handheld drills, drill presses and on pillar drills.
- Perfect for through holes in aluminium, brass and plastics up to 1xD (e.g. M6 = 6 mm material thickness).
- Also ideal for machining sheet metal made from unalloyed and alloyed steels up to 600 N/mm², and from malleable iron
- Significantly reduce the rotation speed for thread cutting and countersinking/deburring after drilling. The recommended cutting parameters for the various materials and tool diameters can be found in the cutting parameter overview.
- Use sufficient coolant and lubricant.
- Ensure to work perpendicular to the material. Avoid tilting: Risk of tool breakage!
- All threads of the combination screw tap must be through and out of the hole before reversing it. Otherwise the tool or the cutting edges might break.
Select RAL-colour code
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