# WS Wiel\u00e4nder+Schill Step Drill Bit Set \u2013 25 Piece (Part Number: 637008)<\/p>\n
This professional 25-piece step drill bit set is optimized for precise, circular drilling tasks, specifically designed for use with hand drills. The excellent quality manufacturing and special geometric design guarantee efficient and accurate work during the machining of various materials.<\/p>\n
## Product Description and Key Features<\/p>\n
The step drill bits feature a stepped tip geometry, which can include up to 6 steps, thus ensuring the creation of extremely precise and clean holes.<\/p>\n
**Precise Centering and Easy Cutting:**
\nThe drill bit tip is designed with a 118\u00b0 point angle, complemented by optimized, sharp-edged cross-grinding. This combination ensures precise centering, minimizes the risk of the drill slipping on the workpiece, and enables extremely easy cutting.<\/p>\n
**Stable Mounting for Hand Drills:**
\nThe drill bits have a cylindrical shank equipped with three flats (3-flat shank). This design ensures stable positioning in the drill chuck, preventing unwanted rotation or slippage during the drilling process, thereby increasing safety and workpiece quality.<\/p>\n
**Materials and Application Areas:**
\nThis set is ideally suited for bodywork construction and general metalworking, especially for drilling the following materials:
\n* Steel
\n* Sheet Steel
\n* Plastic (Kunststoff)<\/p>\n
The set is supplied in a transparent, durable plastic case (Plastic), which facilitates quick identification of sizes and organized storage of the tools.<\/p>\n
## Technical Data<\/p>\n
Detailed technical specifications of the product can be found in the following table:<\/p>\n
| Property | Value | Comment |
\n| :— | :— | :— |
\n| **Part Number** | 637008 | Unique Identifier |
\n| **Diameter Range (\u00d8)** | 1.0 \u2013 13.0 mm | Smallest and largest diameter found in the set |
\n| **Pitch (Pitch)** | 0.5 mm | Step pitch of the stepped design |
\n| **Design** | Step Drill Bit | Special tip geometry |
\n| **Number of Steps** | Up to 6 steps | To achieve precise hole sizes |
\n| **Flutes** | 2 | Two spiral grooves |
\n| **Point Angle** | 118\u00b0 | Optimized for precise centering |
\n| **Web Thinning** | Optimized, sharp edge | For easy cutting |
\n| **Shank Design** | Cylindrical, 3-flat shank | Prevents slipping in the chuck |
\n| **Conformity Marking** | DIN 338 | Meets standard requirements |
\n| **Material** | HSS (High-Speed Steel) | Shank material |
\n| **Accessory Casing** | Plastic | Casing material |
\n| **Drillable Materials** | Steel, Sheet Steel, Plastic | Main areas of application |
\n| **Shape** | Cylindrical | General drill bit shape |
\n| **Net Weight** | 0.610 kg | Weight of the entire set |
\n| **Packaging** | 1 set | Contents of the package |<\/p>\n
## Advantages for the User<\/p>\n
The WS Wiel\u00e4nder+Schill step drills offer significant advantages for body repair and metalworking specialists:<\/p>\n
1. **Increased Accuracy:** The stepped design allows for gradual achievement of the hole diameter, which is particularly advantageous for thinner materials where sudden breakthrough should be avoided.
\n2. **Time Saving:** Since multiple diameters can be achieved with a single tool, the frequency of tool changes is reduced, speeding up the work.
\n3. **Longer Lifespan:** The high-quality HSS material and the special tip geometry ensure the durability of the tools, even under high demand.
\n4. **Safe Operation:** The 3-flat shank guarantees that the drill is firmly seated in the chuck, minimizing the risk of accidents and damage to the workpiece.<\/p>\n
## Accessories (Zubeh\u00f6r)<\/p>\n
For maximum efficiency and precise work, the following supplementary tools are recommended for the step drills:<\/p>\n
* **Automatic Center Punch:** Part number: 932521. Center punch auxiliary tool for preparing precise drilling and milling.
\n* **BTR\/BOR Cutting Fluid | 125 ml:** Part number: 628000. Silicone-free cutting oil that extends the lifespan of cutting tools during the machining of high-strength automotive body steels, ensuring optimal cutting performance.
\n* **Center Punch | \u00d8 5 \u00d7 120 mm:** Part number: 628007. Traditional center punch auxiliary tool for marking the precise drilling point.<\/p>\n
This 25-piece step drill bit set (637008) is a fundamental component of the Wiel\u00e4nder+Schill professional tool range, guaranteeing reliable and precise drilling results even under the most demanding workshop conditions.<\/p>","protected":false},"excerpt":{"rendered":"
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