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| Specification Attribute | Technical Detail |
| Brand | STANLEY / Black & Decker (Stanley Black & Decker) |
| Product Series / Model Name | 13mm (1/2") Keyless Hand-Tightened Replacement Chuck |
| Model / SKU Number | 90618579-01 / 90618579 |
| Product Category | Power Tool Accessories / Drilling Accessories / Replacement Chucks |
| Spindle Thread Size | 1/2" - 20 UNC |
| Chuck Capacity | Up to 13 mm (1/2 Inch) |
| Operation & Lock Type | Keyless Manual Hand-Tightened Collar |
| Compatible Devices | Corded Drills, Cordless Drill Drivers & Percussion Hammer Drills |
| Product Net Weight | 0.18 kg (180 Grams) |
| Body Construction | Hardened Steel Internal Mechanism with Textured Grip Outer Sleeve |
| Target Work Environments | Tool Repair Workshops, Maintenance Bays, Joinery Units & Jobsite Toolboxes Across Nepal |
| Best Used For | Replacing Damaged or Stuck Keyed Chucks, Upgrading to Keyless Bit Swapping |
Universal 1/2-20 UNC Spindle Mount: Standard thread size enables direct replacement on a wide range of Stanley, Black & Decker, and universal 13mm drilling machines.
Fast Tool-Free Keyless Operation: Hand-tightened outer sleeve allows rapid bit changes without searching for or losing a separate chuck key.
Firm 3-Jaw Bit Clamping: Precision-machined steel jaws grip round and hex drill shanks securely up to 13mm, preventing slippage under heavy loads.
Lightweight 0.18 kg Balanced Profile: Reduces spindle inertia and bearing strain, maintaining smooth tool balance during delicate or overhead drilling.
Original Stanley Black & Decker Spare: OEM factory component designed for proper thread alignment, consistent concentricity, and long service life.