HSS SMART STEP sheet metal conical drill bit
Sheet metal conical drill bit HSS SMART STEP
SHTMETCONIDRL-SMARTSTEP-SZ3-(D16-30,5MM)
ZEBRA SMART STEP


Register now and access more than 125,000 products
SMART STEP technology
- Up to 3x faster spot drilling compared to conventional sheet metal conical drill bits
- Up to 50 % longer service life compared to conventional sheet metal conical drill bits
- Significantly less effort required when drilling compared to conventional sheet metal conical drill bits
- Eliminates pre-drilling, precise spot drilling without running off-centre
- Comfortable, stepless boring or enlarging of an existing drill hole
- Burr-free drilling without deformation of the sheet metal
- Precise, circular holes
Deep-ground spiral flute
Excellent chip removal
Laser scaling in the flute
Easy reading of the hole diameter during the drilling process
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
- The universal tool for large, stepless drilling in 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 the electrical trade, plumbing and heating systems, automotive workshops, mechanical engineering, switch cabinet manufacturing or container and equipment engineering.
- Ensure that there is sufficient coolant/lubricant.
- Observe the rotation speed table
- Do not push during boring. The sheet metal conical drill bit automatically retracts into the sheet metal.
Size | 3 |
Min./max. drill diameter | 16-30.5 mm |
Length | 81 mm |
Shank diameter | 9 mm |
Cutting material | HSS |
Shank style | 3-face shank |
Surface | Uncoated |
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. |
Cutting values | ||||||
For dia. 3.0-14.0 and dia. 5.0-20.0 | ||||||
Material designation | Tensile strength | vc | n | |||
Dia. 3.0-14.0 Art. | dia. 5.0-20.0 art. and | |||||
Tapping (1st drilling step) | to | Tapping (1st drilling step) | to | |||
Steels | ||||||
General structural steels | ≤ 700 N/mm² | 15 | 1500 | 350 | 950 | 250 |
Unalloyed quenched and tempered steels | ≤ 700 N/mm² | 15 | 1500 | 350 | 950 | 250 |
≤ 900 N/mm² | 11 | 1100 | 300 | 700 | 180 | |
Low-alloy quenched and tempered steels | ≤ 700 N/mm² | 15 | 1500 | 350 | 950 | 250 |
≤ 900 N/mm² | 11 | 1100 | 300 | 700 | 180 | |
Alloyed quenched and tempered steels | ≤ 1,300 N/mm² | 9 | 900 | 200 | 550 | 140 |
Nitriding steels | ≤ 1,300 N/mm² | 9 | 900 | 200 | 550 | 140 |
Tool steels | ≤ 1,300 N/mm² | 9 | 900 | 200 | 550 | 140 |
High-speed steels | ≤ 1,300 N/mm² | 9 | 900 | 200 | 550 | 140 |
Cast metals | ||||||
Cast iron | ≤ 350 HB | 15 | 1500 | 350 | 950 | 250 |
Spheroidal graphite and malleable iron | ≤ 350 HB | 12 | 1250 | 270 | 750 | 190 |
Non-ferrous metals | ||||||
Aluminium | ≤ 450 N/mm² | 18 | 1800 | 450 | 1100 | 350 |
Aluminium alloys | ≤ 450 N/mm² | 17 | 1800 | 400 | 1100 | 350 |
Low-alloy copper | ≤ 400 N/mm² | 17 | 1800 | 400 | 1100 | 350 |
Short-chipping brass | ≤ 850 N/mm² | 18 | 1800 | 450 | 1100 | 350 |
Long-chipping brass | ≤ 850 N/mm² | 17 | 1800 | 400 | 1100 | 350 |
Plastics | ||||||
Plastics, thermosetting | 26 | 2600 | 600 | 1600 | 400 | |
Plastics, thermoplastic | 24 | 2500 | 550 | 1500 | 400 |
Datasheets (0)
Certificates/ Documents (0)
Select RAL-colour code
!! NOTE: On-screen visualisation of the colour differs from real colour shade!!