10 Best Clock Keys

#1 Best Pick

SG Store 4Pcs Clock Winding Key 4.5mm Square Hole Clock Repair Tool Wood Clock Tool Compatible with Ridgeway Compatible with Howard Miller Compatible with Seth Thomas

Brand: SG Store

Versatile Compatibility: Our Clock Winding Key is designed to fit most antique mechanical desk clocks, wooden clocks, wall clocks, and alarm clocks, making it an versatile tool for clock repair.
Durable and Long-lasting: Crafted from durable steel, our Clock Winding Key is built to last and withstand the test of time.
Convenient Size and Design: With an overall length of 49mm, shaft length 17.5mm, and square hole size of 4.5mm or 0.177 inch, our Clock Winding Key is perfectly sized for easy handling and efficient winding.
Essential Tool for Clock Repair: As a professional clock repairer or clock enthusiast, you understand the importance of having the right tools on hand. Our Clock Winding Key set is a must-have for restoring and maintaining antique clocks.
Package Contains: You'll receive 4 pieces of our Clock Winding Key, each featuring a 4.5mm or 0.177 inch square hole.

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#2 Best Value

Harts Solid Brass Winding and Setting Clock Keys Full range from 2mm up to 6mm (4mm 7)

Brand: Harts

Brass Clock Winding and Setting Keys
17 variation available 00 < 15
Solid Brass Construction
Full Size conversion chart in Graphics
Sizes are measured across the flats of the winding arbor.

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#3 Budget Pick

Clock Keys for Winding - Mechanical Clock Winder | Antique Clocks Motor Kit Floor Clocks Handle, Grandfather Clock Supplies for Watch Industry Professionals, Enthusiasts and Repair Technicians

Brand: Generic

Long Serving Life: Built to last with steel construction, Clock Key provides a dependable and sturdy performance that provides a long-term use experience without scratching or damaging easily, making it the ideal clock accessory
Use Simply: Designed with a standard square inner diameter of about 4.4mm, it perfectly fits your clock winding mechanism, ensuring smooth and effortless operating
Practical in Maintenance: Our Clock Key ensures precision in regulating your clock so that you can effortlessly achieve accurate time-keeping and maintain its aesthetic appeal
Wide Application Range: Crafted for watch industry professionals, enthusiasts, and repair technicians, this Clock Key is an indispensable tool for meticulous care of wooden clocks. It ensures their normal working and long-term use, maximizing their longevity. Widely applicable for all types of wooden clocks
Multipurpose Tool: Not only for personal use, this clock key is a must-have item for watch repair shops, exhibitions, or maintenance centers, ensuring precision and reliability in every task

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#4 Top Choice

Universal Vintage Clock Winding Key 5 Prong Odd Numbers 3 to 11 Brass Clock Key for Winding Clocks

Brand: Generic

Universal Compatibility: 5 prong clock winding key suitable for various clock types
Odd Numbered Sizes: Includes sizes 3mm (1/8 in, 3), 3.5mm (9/64 in, 5), 4mm (5/32 in, 7), 4.5mm (0.174 in, 9), and 5mm (13/64 in, 11)
Durable Material: Made from high-quality brass for long-lasting use and a vintage look
Wide Application: Ideal for winding antique clocks, grandfather clocks, and mechanical timepieces
Master Key Solution: Perfect for clock collectors with multiple winding clocks no more mismatched keys

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#5 Popular Choice

Jewellers Tools 4.75 MM Winding Clock Key Winged Type Brass Keys Grandfather Winder Tool

Brand: Jewellers Tools

TOP QUALITY BRASS CLOCK KEY
To establish the exact size of key your clock requires you will need to measure the width of the square winding pinion and purchase a key that is just a little

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#6 Top Pick

COHEALI 3pcs Universal Clock Winding Keys Set 3.8mm 4.4mm Steel Mechanical Movement Tool for Grandfather and Wall Clocks

Brand: COHEALI

Lasting strength: each grandfather clock crank winder key is constructed from steel, providing mechanical clock parts longevity and reliable performance for years,small grandfather clock key,universal grandfather clock key
Portability ease: the small grandfather clock key size offers easy storage and portability, ensuring your windup clock key replacement is always at hand for clock mechanism winding key tasks,winding clock key,old clock winding key
Firm material: crafted from steel, these clock winding keys are built for daily use, making them ideal replacement clock keys for all types of mechanical clock tools,grandmother clock winding key,wind clock key
Multipurpose set: with multiple sizes included, this clock winding key set fits your winding key alarm clock, wind clock key, and universal clock winding keys needs with ease,clock mechanism winding key,vintage clock key
Complete set solution: get a grandfather clock winder key set, ensuring you’re equipped with all the essential grandfather clock tools and old wind up clock keys needed for maintenance and restoration,grandfather clock replacement key,winding key for grandfather clock

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#7 Top Pick

2 pieces 5-in-1 Odd/Even Number Brass Clock Winding Key

Brand: TAURISH

Package Content: Set of 2 clock keys for winding clocks
5 prong both odd and even numbers
Made of brass (A metallic alloy that is a good source of copper and zinc)
Universal application
5 prong odd sizes: 3, 5, 7, 9, 11
3mm 1/8 in (3), 3.5mm 9/64 in (5), 4mm 5/32 in (7), 4.5mm (9), and 5mm 13/64 in (11)
5 prong even sizes: 2, 4, 6, 8, 10
2.75mm 7/64 in (2), 3.25mm 1/8 in (4),3.75mm 5/16 in (6), 4.25mm 11/64 in (8), 4.75mm 3/16 in (10)
Master key: This master key has universal application. If you owe many winding clock in your stock but always problem for the key. These two keys are solution for you. Most of all winding clock keys available in these 10 prongs (Each Key with 5 prong)

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#8 Top Pick

Create idea Clock Winding Key Metal 4mm Size 7 Winding Key for Antique Vintage Key Wind Clocks Square Hole Clock Key Single End Chime Clock Key 55x52mm

Brand: Create idea

Size: Hole 4mm, LxW: 55x52mm
Precision Fit: Ensures compatibility with key wind clocks This replacement clock key is designed to fit 4 0 mm square holes providing a secure and snug fit for reliable clock winding
Easy Winding :Simplifies the maintenance process With a single end design this key is easy to handle and use making it convenient for winding various antique and vintage clocks
Versatile Compatibility: Works with a range of clock models This key is suitable for various antique and vintage clocks that require a 4mm winding arbor offering a versatile solution for clock enthusiasts and collectors
Historical Accuracy: Preserves the authenticity of antique clocks The brass material and design of this key complement the aesthetics of antique and vintage clocks maintaining their historical charm during maintenance

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#9 Top Pick

Jewellers Tools Set of 2 Clock Winding Keys - Brass Spider Star Pair - Odd and Even

Brand: Jewellers Tools

THIS IS A SET OF 10 CLOCK KEYS
KEY ONE NUMBERS 2, 4, 6, 8, 10 HOLE SIZES ARE 2.75, 3.25, 3.75, 4.25 AND 4.75MM
KEY 2 NUMBERS 3, 5, 7, 9, 11 HOLE SIZES ARE 3.0, 3.5, 4.0, 4.5 AND 5MM

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#10 Top Pick

PRAZTECH® 18‑Size Solid Brass Clock Winding Key Set – Includes Sizes 000 to 15, Durable Metal Construction, Ideal for Grandfather, Wall & Mantel Clocks

Brand: PRAZTECH

Comprehensive 18-Key Set – Includes brass keys in sizes 000, 00, 0, 1–15 to fit a wide range of winding arbors in antique and modern clocks.
High-Quality Brass Construction – Made from solid machined brass for corrosion resistance and long-lasting performance.
Precision Fit – Each key is labeled with its size and designed for smooth, secure engagement with clock winding shafts.
Perfect for Clock Enthusiasts – Ideal for homeowners, horologists, and collectors maintaining grandfather, wall, mantel, carriage, or table clocks.
Compact & Well-Packaged – Set of 18 keys weighing approximately 204 g; conveniently organized for easy storage and portability.

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10 Best Clock Keys

SG Store 4Pcs Clock Winding Key 4.5mm Square Hole Clock Repair Tool Wood Clock Tool Compatible with Ridgeway Compatible with Howard Miller Compatible with Seth Thomas

Harts Solid Brass Winding and Setting Clock Keys Full range from 2mm up to 6mm (4mm 7)

Clock Keys for Winding - Mechanical Clock Winder | Antique Clocks Motor Kit Floor Clocks Handle, Grandfather Clock Supplies for Watch Industry Professionals, Enthusiasts and Repair Technicians

Universal Vintage Clock Winding Key 5 Prong Odd Numbers 3 to 11 Brass Clock Key for Winding Clocks

Jewellers Tools 4.75 MM Winding Clock Key Winged Type Brass Keys Grandfather Winder Tool

COHEALI 3pcs Universal Clock Winding Keys Set 3.8mm 4.4mm Steel Mechanical Movement Tool for Grandfather and Wall Clocks

2 pieces 5-in-1 Odd/Even Number Brass Clock Winding Key

Create idea Clock Winding Key Metal 4mm Size 7 Winding Key for Antique Vintage Key Wind Clocks Square Hole Clock Key Single End Chime Clock Key 55x52mm

Jewellers Tools Set of 2 Clock Winding Keys - Brass Spider Star Pair - Odd and Even

PRAZTECH® 18‑Size Solid Brass Clock Winding Key Set – Includes Sizes 000 to 15, Durable Metal Construction, Ideal for Grandfather, Wall & Mantel Clocks

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