Description
Quick-change SDS-plus chuck for horizontal rotary hammers (4-ball type)
The SDS-plus quick-change replacement chuck is designed for installation on light horizontal rotary hammers equipped with a Quick Change system. The spindle locking mechanism uses 4 bearing balls, ensuring a tight fit on the tool shaft, zero radial play, and maximum impact energy transfer to the drill bit or chisel without the need for a key.
Key Advantages and Features:
- Instant accessory replacement: The SDS-plus clamping system allows for one-handed installation and removal of drill bits, chisels, and points in seconds.
- 4-ball locking mechanism: Provides secure and safe fixation of the chuck on the rotary hammer's intermediate barrel, preventing adapter detachment under heavy impact loads.
- High-strength alloy steel: The internal working jaws and mounting sleeve are heat-treated and hardened, making them resistant to mechanical wear and vibration.
- Protective dust cap: The built-in rubber seal keeps out concrete chips, brick dust, and debris, protecting the internal barrel mechanism from premature wear.
Compatibility and Application:
Used on corded and cordless horizontal rotary hammers with a removable DFR barrel and 4-ball mounting system:
- Bosch rotary hammers: GBH 2-24 DF, GBH 2-26 DFR, GBH 2-28 DFV, GBH 3-28 DFR, GBH 4-32 DFR, and similar models with a quick-change system.
- Rotary hammers from other manufacturers: Dnipro-M, Zenit, Tekhmann, Stark, Sturm, Vitals, Intertool, Grand, Procraft, Craft, and other Chinese and European rotary hammers with a 4-ball mounting mechanism.
- Compatible accessories: Drill bits, core bits, points, and chisels with a standard SDS-plus shank (10 mm shank diameter).
Technical Specifications:
| Parameter | Value / Specification |
|---|---|
| Part type | Quick-change replacement chuck (DFR adapter) |
| Accessory standard | SDS-plus (10 mm shank) |
| Mounting type | Quick-change connection with 4 locking balls |
| Rotary hammer type | Horizontal with removable chuck |
| Housing and mechanism material | Hardened steel, impact-resistant plastic, rubber |
| Condition | New part |
Package Includes:
- Quick-change SDS-plus chuck (4-ball) — 1 pc.
Pro tip: Before installing the chuck, be sure to remove accumulated dust and old grease from the rotary hammer spindle. During operation, regularly apply a small amount of specialized drill bit grease to the accessory shank — this reduces friction in the slots, prevents the striker from overheating, and significantly extends the service life of both the chuck's locking balls and the tool's barrel.
