HSS SMART STEP stepped twist drill bit
Stepped twist drill bit HSS SMART STEP
DRL-STEP-SPRL-SMARTSTEP-(D6,5-40,5MM)
ZEBRA SMART STEP
Art.-no.
0694450640
EAN 4065746562201
Prices for customers after login
Exclusively for trade customers
Register now and access more than 125,000 products
Stepped drill bit with unique SMART STEP technology and dynamically curved rake between the individual step transitions for extremely fast and comfortable use in all common materials with a material thickness of up to 3.5 mm.
Dynamically curved cutting edge geometry between each step transition
- Significantly longer service life compared to conventional stepped drill bits
- Significantly faster drilling compared to conventional stepped drill bits
- Minimal effort required
- Quiet, perfectly controlled drilling process
- Greatly reduced formation of burrs
SMART STEP technology
- Up to 3x faster spot drilling compared to conventional stepped drill bits
- Precision spot drilling without centring or centre-punching
- No warping of sheet metal
- Simple drilling or enlarging of an existing drill hole
- No rattling or catching in the material
- Precise, circular holes without tearing or splintering
Deep-ground spiral flute
Excellent chip removal
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
Product information
Datasheets(X)
Application area
- The ideal tool for machining sheet metal.
- Centring, spot drilling, boring and deburring of sheet metal, tubes and profiles in one operation, for use on both hand drills and stationary equipment.
- Ideal for use in electrical trade, plumbing and heating systems, automotive workshops, mechanical engineering, switch cabinet manufacturing or container and equipment engineering.
Instructions
- Ensure that there is sufficient coolant/lubricant
- Observe the rotation speed table
- Do not push during boring. The stepped drill bit automatically retracts into the sheet metal
Min./max. drill diameter | 6.5-40.5 mm |
Shank diameter | 10 mm |
Shaft length | 24 mm |
Length | 125 mm |
Shank style | 3-face shank |
Surface | Uncoated |
Material to be processed | Steel, Cast metal, Non-ferrous metal, Plastic, Wood |
Key |
vc = cutting speed [m/min] |
n = rotation speed [rpm] |
The suggested cutting values are reference values and must be adapted to the respective conditions. |
Art. no. | Number of steps | Diameter of the drilling area [mm] |
0694450330 | 14 | 3.5/5.5/7.5/9.5/11.5/13.5/15.5/17.5/19.5/21.5/23.5/25.5/27.5/29.5 |
0694450412 | 9 | 4.0/5.0/6.0/7.0/8.0/9.0/10.0/11.0/12.0 |
0694450420 | 9 | 4.0/6.0/8.0/10.0/12.0/14.0/16.0/18.0/20.0 |
0694450421 | 9 | 4.0/6.0/8.0/10.0/12.0/14.0/16.0/18.0/20.0 |
0694450429 | 13 | 4.5/6.5/8.5/10.5/12.5/14.5/16.5/18.5/20.5/22.5/24.5/26.5/28.5 |
0694450529 | 13 | 5.0/7.0/9.0/11.0/13.0/15.0/17.0/19.0/21.0/23.0/25.0/27.0/29.0 |
0694450630 | 13 | 6.0/8.0/10.0/12.0/14.0/16.0/18.0/20.0/22.0/24.0/26.0/28.0/30.0 |
0694450637 | 12 | 6.0/9.0/12.5 (PG7)/15.2 (PG9)/18.6 (PG11)/20.4 (PG13.5)/22.5 (PG16)/26.0/28.3 (PG21)/30.5/34.0/37.0 (PG29) |
0694450639 | 12 | 6.0/9.0/12.0/15.0/18.0/21.0/24.0/27.0/30.0/33.0/36.0/39.0 |
0694450640 | 16 | 6.5/8.5/10.5/12.5/14.5/16.5/18.5/20.5/23.5/25.5/28.0/30.5/32.5/35.5/38.5/40.5 |