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WK81502
WINKKO
Product Parameters
Power:1300W
No-load Speed: 0-1150 bpm
Impact Rate: 0-4500 bpm
Force of impact：4.8J
Voltage: 230V
Selecting the right rotary hammer isn't about buying the most powerful model; it's about matching the tool's capabilities to your specific needs. This guide will walk you through the key features to consider, ensuring you invest in a tool that is both effective and comfortable for your projects.
Your primary use-case will dictate the type of rotary hammer you need.
Light-Duty Tasks: For occasional drilling of small holes in brick or block, installing anchors, or light-duty chiseling (e.g., removing tile), a compact, cordless SDS-Plus model is ideal. These are lighter, easier to handle, and offer great mobility for overhead work or jobs in tight spaces.
Medium-Duty Tasks: If you're a contractor who drills into concrete regularly for electrical conduit, plumbing, or setting larger anchors, a corded SDS-Plus model is your best bet. It provides consistent power and won't be limited by battery life.
Heavy-Duty & Demolition: For large-diameter core drilling, breaking up concrete slabs, or extensive chipping, you need a high-impact, corded SDS-Max rotary hammer. These are built for raw power and prolonged use on the toughest jobs.
Impact Energy (Joules): This is the most crucial metric. It measures the force of each hammer blow and directly correlates to how quickly and easily the tool will penetrate hard materials.
2-4 Joules: Perfect for light to medium-duty drilling with SDS-Plus bits.
5-10 Joules: The sweet spot for most professional applications, offering a balance of power and control.
10+ Joules: Reserved for heavy-duty demolition and large-diameter drilling with SDS-Max bits.
Chuck System (SDS-Plus vs. SDS-Max):
SDS-Plus: The most common system for bits up to 1 inch in diameter. It is found on smaller, lighter hammers and is the standard for most professional trades.
SDS-Max: Designed for larger, more powerful hammers and bits over 1 inch. This system has a larger shank and is built to withstand the immense forces of heavy-duty drilling and demolition. Bits are not interchangeable between the two systems.
Power Source (Corded vs. Cordless):
Corded: Provides unlimited, consistent power for all-day use. Generally more powerful and less expensive than their cordless counterparts, but their mobility is limited by the cord.
Cordless: Offers unparalleled freedom and portability. Modern battery technology provides excellent power for many professional tasks, but run-time is a factor. Cordless models are ideal for work in remote locations or for jobs that require frequent movement.
Anti-Vibration Technology: Look for a model with a dampening system, often in the form of a cushioned grip or a floating handle. This feature significantly reduces fatigue and prevents the risk of hand-arm vibration syndrome (HAVS) during extended use.
Variable Speed Control: This allows you to adjust the RPM and hammering frequency, giving you more control for delicate tasks or when starting a hole.
Safety Clutch: An essential feature that disengages the motor if the bit jams, protecting both the user from injury and the tool from damage.
Product Parameters
Power:1300W
No-load Speed: 0-1150 bpm
Impact Rate: 0-4500 bpm
Force of impact：4.8J
Voltage: 230V
Selecting the right rotary hammer isn't about buying the most powerful model; it's about matching the tool's capabilities to your specific needs. This guide will walk you through the key features to consider, ensuring you invest in a tool that is both effective and comfortable for your projects.
Your primary use-case will dictate the type of rotary hammer you need.
Light-Duty Tasks: For occasional drilling of small holes in brick or block, installing anchors, or light-duty chiseling (e.g., removing tile), a compact, cordless SDS-Plus model is ideal. These are lighter, easier to handle, and offer great mobility for overhead work or jobs in tight spaces.
Medium-Duty Tasks: If you're a contractor who drills into concrete regularly for electrical conduit, plumbing, or setting larger anchors, a corded SDS-Plus model is your best bet. It provides consistent power and won't be limited by battery life.
Heavy-Duty & Demolition: For large-diameter core drilling, breaking up concrete slabs, or extensive chipping, you need a high-impact, corded SDS-Max rotary hammer. These are built for raw power and prolonged use on the toughest jobs.
Impact Energy (Joules): This is the most crucial metric. It measures the force of each hammer blow and directly correlates to how quickly and easily the tool will penetrate hard materials.
2-4 Joules: Perfect for light to medium-duty drilling with SDS-Plus bits.
5-10 Joules: The sweet spot for most professional applications, offering a balance of power and control.
10+ Joules: Reserved for heavy-duty demolition and large-diameter drilling with SDS-Max bits.
Chuck System (SDS-Plus vs. SDS-Max):
SDS-Plus: The most common system for bits up to 1 inch in diameter. It is found on smaller, lighter hammers and is the standard for most professional trades.
SDS-Max: Designed for larger, more powerful hammers and bits over 1 inch. This system has a larger shank and is built to withstand the immense forces of heavy-duty drilling and demolition. Bits are not interchangeable between the two systems.
Power Source (Corded vs. Cordless):
Corded: Provides unlimited, consistent power for all-day use. Generally more powerful and less expensive than their cordless counterparts, but their mobility is limited by the cord.
Cordless: Offers unparalleled freedom and portability. Modern battery technology provides excellent power for many professional tasks, but run-time is a factor. Cordless models are ideal for work in remote locations or for jobs that require frequent movement.
Anti-Vibration Technology: Look for a model with a dampening system, often in the form of a cushioned grip or a floating handle. This feature significantly reduces fatigue and prevents the risk of hand-arm vibration syndrome (HAVS) during extended use.
Variable Speed Control: This allows you to adjust the RPM and hammering frequency, giving you more control for delicate tasks or when starting a hole.
Safety Clutch: An essential feature that disengages the motor if the bit jams, protecting both the user from injury and the tool from damage.
