This professional, 19-piece step drill bit set from the WS Würeländer+Schill range is an excellent choice for creating precise, round holes, especially when optimized for hand drills. The special design of the tools guarantees accurate centering and easy drilling, thereby increasing the efficiency and accuracy of workflows.
The step drill bits feature a unique, stepped tip geometry, providing up to 6 different diameter steps to ensure precise hole starting and gradual deepening. This design minimizes the risk of the drill slipping on the workpiece surface.
Precise Drilling Performance:
The drill tip has a 118° point angle, complemented by an optimized, sharp-edged cross-grinding. This combination enables extremely accurate centering and exceptionally easy cutting, even when machining harder materials.
Stable Grip for Hand Drills:
The drill bits are equipped with a cylindrical shank that features a three-flat design (3-flat shank). This three-flat design ensures a secure fit in the chuck, effectively preventing the drill bit from rotating or slipping during the drilling process, which is particularly important under high load.
Ideal Application Area:
These drill bits are ideally suited for auto body repair work, where creating a clean, burr-free hole is essential. The stepped design allows for gradual increasing of the hole size without needing to repeatedly change tools.
The set contains tools conforming to the DIN 338 standard, made from HSS (High-Speed Steel), which provides excellent wear resistance and heat resistance.
| Property | Spezification |
|---|---|
| Part number | 637007 |
| Set Contents | 1 Set (19 Pieces) |
| Diameter Range (Ø) | 1.0 mm – 10.0 mm |
| Pitch (Pitch) | 0.5 mm |
| Material | HSS (High-Speed Steel) |
| Design | Cylindrical Shank (cylindrical) |
| Number of Flutes | 2 |
| Point Angle | 118° |
| Shank Design | 3-flat (3-flat shank) |
| Conformity Declaration | DIN 338 |
| Form | Cylindrical |
| Weight | 0.570 kg |
The 19-piece set covers the following diameters, with a pitch of 0.5 mm:
1.0 mm
1.5 mm
2.0 mm
2.5 mm
3.0 mm
3.5 mm
4.0 mm
4.5 mm
5.0 mm
5.5 mm
6.0 mm
6.5 mm
7.0 mm
7.5 mm
8.0 mm
8.5 mm
9,0 mm
9.5 mm
10.0 mm
Time Saving: Thanks to the step design, multiple sizes are achievable with a single tool, reducing time spent changing drills.
High Accuracy: The special tip geometry and 118° point angle guarantee precise starting and a clean hole finish.
Reliable Fastening: The 3-flute shank prevents the drill bit from turning in the chuck, which increases safety and tool life.
Wide Applicability: Ideal choice for general metal drilling applications, especially for automotive bodywork.
To maximize efficiency and tool life, we recommend using the following accessories:
Automatic Center Punch (Item no: 932521): Centering aid for precise marking before drilling and milling.
BTR/BOR Fluid | 125 ml (Item no: 628000): Silicone-free cutting oil that significantly increases the lifespan of cutting tools (drills, mills, saws), especially when machining high-strength automotive steel, while ensuring optimal cutting performance.
Center Punch | Ø 5 × 120 mm (Item no: 628007): Traditional centering tool for precise preparation before drilling and milling.
This 19-piece step drill bit set represents the quality of WS Wieländer+Schill, ensuring reliable and precise work even in the most demanding professional environments.
