Twist drill bit HSS DIN 1869 R2 SMART STEP
Twist drill bit HSS DIN 1869 R2 SMART STEP
DRL-TWST-MET-DIN1869-HSS-SMARTSTEP-D5,5
ZEBRA SMART STEP






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The first extra-long twist drill bit with stepped drill bit tip geometry
Precise, circular holes without centre-punching
Up to 100 % faster than conventional extra-long HSS drill bits
Extremely comfortable drilling
- Eliminates pre-drilling despite the extra-long design, precise spot drilling
- Prevents the tool from running off-centre even during particularly deep drilling
- Significantly less effort required when drilling compared to conventional extra-long twist drill bits
- Simple drilling or enlarging of an existing drill hole
3-flat shank
- No spinning in the drill chuck: faster, more comfortable working
- Optimal power transmission
- Protects the drill chuck from damage
- Minimal effort required to loosen and tighten the drill chuck
Product packaging made from 100 % PCR (recycled plastic from household waste) and 100 % recyclable
Available exclusively from Würth
For blind holes, please note the extended drill tip (see dimension l3)!
Datasheets(X)
- Ideal for drilling thin-walled composite materials, e.g. in window construction (plastic profiles with steel core)
- High quality of drill holes and significantly longer service life compared to conventional wood boring bits.
- Perfect for cordless drill drivers as well as handheld and pillar drill and drill presses
- Universally suited for smooth as well as rounded and uneven surfaces
For optimum drilling progress and to avoid jamming, use “pecking cycles” for large drilling depths.
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Suitable for machine type | Drill, Cordless screwdrivers, Pedestal drilling machine |
Material to be processed | Steel, Cast iron, Non-ferrous metal, Wood, Hardwood |
Quality | ZEBRA-Premium |
Standard / drilling depth | DIN 1869 / 25xD |
Design | Overlong |
Diameter (Ø) | 5.5 mm |
Length (l1) | 260 mm |
Chip flute length (l2) | 180 mm |
Drill tip length (l3) | 4.6 mm |
Shank diameter | 5.5 mm |
Shank style | 3-face shank |
Surface | Multiple refined |
Cutting material | HSS |
Service life (points system) | 3 of 4 points |
Drilling speed (point system) | 4 of 4 points |
Bore hole quality (point system) ( ) | 4 of 4 points |
Versatility (points system) | 3 of 4 points |
Drilling behaviour (point system) | 4 of 4 points |
Suitable for drill (points system) | 4 of 4 points |
Suitable for cordless drills (points system) | 4 of 4 points |
Suitable for upright drilling machine (points system) | 4 of 4 points |
Self-centring | Yes |
Suitable for tensile strength up to | 1000 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), Magnesium alloys, Copper, low-alloyed, Brass, short-chipping, Brass, long-chipping, Bronze, short-chipping, Bronze, long-chipping, Plastics, thermoset, Plastics, thermoplastic, Plastics, aramide-fibre reinforced, Plastics, glass/carbon-fibre-reinforced |
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