Images are examples, some edited with AI. The technical data are authoritative. AI notice
Bit Adapter 1/4 Inch to 4 mm Bits, 25 mm Socket, Steel-Aluminum - Bernstein 4-564
This bit adapter converts a 1/4 inch drive to 4 mm bits (5/32 inch) and fits standard screwdriver handles with its hex plug-in shank (outer diameter 8 mm). The 25 mm socket made of a steel-aluminum combination is suited for use with the torque adapter set 4-970-KSB.
- Specialist dealer since 2009
- Invoice payment for regular customers
- Worldwide shipping
- Technical questions clarified with the manufacturer
Description
Anyone working with 4 mm bits (5/32 inch) but only carrying a 1/4 inch screwdriver bridges the gap with this bit adapter, featuring a 25 mm socket made of a steel-aluminum combination.
Advantages
- Reliably converts 1/4 inch drive to 4 mm bits (5/32 inch)
- Hex plug-in shank with 8 mm outer diameter fits standard screwdriver handles
- Steel-aluminum combination for a good balance of strength and weight
- Socket length of 25 mm for a secure hold of longer bits
- Perfectly combinable with the torque adapter set 4-970-KSB
Application
For quick switching between 1/4 inch handles and 4 mm bit systems, for example in torque applications with the adapter set 4-970-KSB in electronics and precision assembly.
Standards and Delivery Data
- EAN 4250838516358
- Customs tariff number 82079030
- Country of origin Taiwan
Technical data
| Feature | Value |
|---|---|
| Use | for 4 mm bits (5/32 inch) |
| Conversion | 1/4 inch to 4 mm bits |
| Shank type | Hex plug-in shank, 8 mm outer diameter |
| Socket length | 25 mm |
| Shank | Hex shank blade, 17.5 mm |
| Material | Steel-aluminum combination |
| Accessories | Screwdriver handle 4-106 (ESD handle 6-340-1) or torque screwdriver 4-563 |
| Overall length | 42.5 mm |
| Weight | 11 g |
| Manufacturer | Bernstein |
| Manufacturer Nr. | 4-564 |
| EAN | 4250838516358 |
| HS-Code | 82079030 |
| GPSR manufacturer information | BERNSTEIN Werkzeugfabrik Industriehof Trecknase 1 DE-42897 Remscheid www.bernstein-werkzeuge.de |
| Condition of article | New |
| Article authenticity | Original product |
| ESD version | TEC |
Downloads
Datasheet
Certificate
Other
- Cases and Sets EN
- Bernstein Catalogue Pages Ball Joint Vices and Holders EN
- Bernstein Catalogue Pages VDE Tools EN
- Bernstein Catalogue Pages Pliers EN
- Bernstein Catalogue Pages Screwing Tools, Torque and Bits EN
- Bernstein ESD Guide EN
- Drehmoment Schraubendreher DE
- Kugelgelenk Schraubstock DE
- Schonbacken DE
- Bernstein Katalogseiten Schraubstöcke und Halter DE
- ESD Leifaden DE
- Bernstein Katalogseiten ESD Arbeitsplatz und ESD Handwerkzeuge DE
- Bernstein Katalogseiten Pinzetten DE
- Bernstein Katalogseiten VDE Werkzeuge DE
- Zangen DE
Accessories
Slotted Screwdriver, Blade 6.0 x 1.0 x 50 mm, Impact Resistant - Bernstein 4-331
Item BS-4-331Bit Adapter Extension 115 mm for 4 mm (5/32 inch) Bits - Bernstein 6-340-2
Item BS-6-340-2Grub Screwdriver Slotted, Blade Width 2.8 x 0.6 x 80 mm - Bernstein 4-311
Item BS-4-311Questions about this item
Any other question?
Send us the item number and your question. We clarify technical details directly with the manufacturer and usually reply on the next working day.










