| Weight | 0,03 kg |
|---|---|
| Dimensions | 4,4 × 0,8 × 0,8 cm |
This detailed product description presents the high-precision step drill belonging to the Wielander + Schill VarioDrill WS 90 series, specifically designed for the reliable removal of rivet heads. This tool is an essential accessory for body repair and metal fabrication work where precise and fast disassembly is crucial.
The NK-2F type step drill belongs to the category of dismantling tools and is optimized for VarioDrill WS 90 systems. Its main task is the efficient and clean removal of rivet heads, minimizing the risk of damage to the surrounding material. The two-step design (2F) ensures fast material removal and precise centering.
This drill is the ideal choice for professionals who frequently work on modern vehicle bodies, where handling high-strength steels and special rivet joints is essential.
Main Advantages:
Special application: Optimized specifically for loosening and removing rivet heads.
Excellent Material Quality: The combination of carbide and HSS (High-Speed Steel) guarantees long service life and excellent cutting performance even on hard materials.
Precise fit: The 8.0 mm shank diameter ensures stable mounting in the appropriate drilling equipment (e.g., VarioDrill WS 90).
Two-step design: Allows for faster drilling compared to traditional step drills, as it removes material more efficiently.
The table below summarizes the critical technical parameters of the NK-2F step drill, ensuring optimal tool utilization for the specified application area.
| Property | Value | Unit of Measure | Note |
|---|---|---|---|
| Part number | 627001 | – | The unique identifier of the product |
| Product Name | Step Drill NK-2F | – | Two-step design |
| Diameter (Ø) | 6,7 | mm | Diameter of the working part of the drill |
| Total length | 44,0 | mm | Total length of the tool |
| Dimensions (Length x Width x Height) | 44 x 8 x 8 | mm | Physical dimensions of the drill |
| Material composition | Carbide, HSS, Metal | – | Ensures the tool's durability and sharpness |
| Shank diameter | 8,0 | mm | Diameter of the clamping shank |
| Weight | 0,030 | kg | Weight of the tool |
| Package contents | 1 darab | Pc. / Piece | Packaging Unit |
This step drill is specifically for the VarioDrill WS 90 system, which is the foundation of the Wielander + Schill dismantling technology. The 8 mm shank diameter ensures the precise and secure mounting of the tool in the appropriate drill chuck.
The drill is ideal for the following:
Rivet Head Removal: The most common application area, where the drill bit is used to remove the material of the rivet head, making it possible to easily push out or remove the rivet without damaging the surrounding sheet metal.
Machining of High-Strength Steels: The combination of HSS and carbide materials enables the efficient drilling of modern high-strength (AHSS/UHSS) body parts.
To increase tool life and optimize cutting quality, the manufacturer recommends using the following accessory products, which are ideal for metal processing applications:
The silicone-free BTR/BOR cutting oil is essential during the drilling process, especially when machining high-strength automotive steels. This fluid significantly increases the lifespan of cutting tools (drills, milling cutters, saws) and ensures optimal cutting performance.
| Product | Part number | Package contents | Advantage |
|---|---|---|---|
| BTR/BOR Fluid | 628000 | 125 ml | Increases tool life, silicone-free |
| BTR/BOR Fluid | 648007 | 50 ml | Ideal for smaller workshops |
To increase the flexibility of operation, extension pieces are available:
| Product | Part number | Description |
|---|---|---|
| Extension 135 mm | 608010 | Extension piece for VarioDrill WS 90, for hard-to-reach areas |
| Extension 85 mm | 608011 | Extension piece for VarioDrill WS 90 |
Precise positioning is critical before drilling rivet heads. The special self-centering punch performs two functions:
1. Function: Marking from the side of the rivet head.
2. Function: Marking from the backside of the rivet.
This tool (Part No: 628006) ensures that the step drill bit hits exactly the center of the rivet, preventing the drill bit from slipping.
A Step drill bit NK-2F (627001) A professional quality, 6.7 mm diameter, 44 mm long step drill bit, featuring an 8 mm shank. It is excellently suited for the quick and clean removal of rivet heads encountered during bodywork repairs. Carbide and HSS materials guarantee durability, while compatibility with the VarioDrill WS 90 system ensures the tool's efficient integration into existing workflows. The use of appropriate cutting fluid further enhances the tool's performance and lifespan.
