Description
SDS-MAX Chuck Repair Kit for Rotary Hammer
SDS-MAX chuck repair kit is designed to restore functionality and ensure effective tool clamping in heavy-duty rotary hammers and demolition hammers. Replacing worn chuck components eliminates play, prevents drill bits from falling out, and protects the tool's internal components from construction dust and debris.
Key Benefits and Features:
- Complete Set: The kit contains all necessary spare parts for a quick and high-quality overhaul of the SDS-MAX chuck.
- Wear Protection: The elastic rubber dust boot effectively traps dust, extending the service life of the barrel and internal splines.
- Secure Tool Fixation: The high-quality cylindrical key and resilient spring ensure firm retention of drill bits and chisels under high impact loads.
- High Durability: All metal components are made of wear-resistant steel designed for intensive use.
Compatibility and Application:
- Chuck Type: SDS-MAX (heavy-duty class of rotary hammers and demolition hammers).
- Compatibility: Suitable for a wide range of rotary hammers from various brands (Bosch, Makita, DeWalt, DWT, Stern, Intertool, etc.) provided the key mounting dimensions match.
Component Technical Specifications:
| Component / Parameter | Dimensions and Specifications |
|---|---|
| Slider (overall height) | 52.5 mm |
| Outer diameter | 56/ 65 mm |
| Slider (inner ∅ of the working cylinder) | 30 mm |
| Slider (working wall length) | 16 mm |
| Slider (outer ∅ for spring seat) | 34.5 mm |
| Slider (inner ∅ for washer and ring) | 34 mm |
| Slider (inner ∅ for barrel dust boot) | 40.5 mm |
| Dust boot (height / seat) | 19 mm / 37.5 mm |
| Cylindrical key (∅ x length) | 8 x 19.5 mm |
| Washer (diameter / thickness) | 28 x 38.5 mm / 2.5 mm |
| Retaining ring (inner ∅) | 26.5 mm |
| Spring (diameter x height) | 40 x 75 mm |
Package Contents:
- Slider — 1 pc.
- Protective dust boot — 1 pc.
- Chuck spring — 1 pc.
- Cylindrical key (D=8 mm, L=19.5 mm) — 2 pcs.
- Washer — 1 pc.
- Retaining ring — 1 pc.
Pro Tip: Before installing the new repair kit, thoroughly clean the rotary hammer barrel of old grease, dust, and small chips. During assembly, be sure to use a special grease for SDS-MAX bits and chucks — this will prevent premature wear of the cylindrical key, slider, and bit shanks.
