Drill bit AWTools AW43557 – metal/wood drilling bit, standard size (AW43557)

The AWTools AW43557 drill bit is a general-purpose drilling tool designed for use in metal and wood as well as harder materials when used with appropriate equipment. Constructed from 40CR alloy steel with a YG8C carbide-tipped blade and a centering point with a 130° angle, this bit combines conventional twist geometry with a double spiral to promote efficient chip evacuation and stable drilling. A four-cutting-edge design provides smooth hole walls and reduces the risk of jamming on contact with reinforcing elements. The grooved SDS+ shank secures the bit in compatible chucks for reliable operation in hand drills, drill presses, hammer drills and rotary hammers.

Advantages

The carbide-tipped cutting edge extends tool life and maintains sharpness when penetrating hard surfaces. The double spiral flute design improves removal of chips and dust, lowering the operating temperature and decreasing vibration during drilling. The 130° centering point helps start holes accurately and reduces walking on the workpiece. Four cutting edges deliver cleaner hole finishes and reduce the likelihood of bit binding when encountering rebar or tough inclusions. The SDS+ grooved shank ensures stable retention in compatible power tools.

Suitable for

• Maintenance and repair tasks involving metal and wood
• Construction work on masonry, concrete and reinforced concrete when used with hammer drill or rotary hammer
• DIY projects requiring a reliable standard-size drill bit
• Drilling where efficient chip evacuation and reduced vibration are important

Key specifications

• Material: 40CR alloy steel body with YG8C carbide-tipped blade
• Point angle: 130° centering point
• Flute design: double spiral for chip evacuation
• Cutting geometry: four cutting edges for smooth holes
• Shank type: grooved SDS+ shank for secure retention
• Applications: metal, wood, concrete, reinforced concrete, rebar, brick

How to use

Select a drill and chuck compatible with the grooved SDS+ shank and secure the bit according to the tool manufacturer’s instructions. For metal and wood, use standard drilling mode with appropriate speed and feed; for concrete and reinforced concrete, engage hammer function on a hammer drill or use a rotary hammer and apply steady pressure without excessive force. Periodically withdraw the bit to clear chips and prevent overheating. Allow the bit to cool between prolonged drilling cycles and inspect the cutting edge for wear before continued use.

Usage recommendations

Use appropriate personal protective equipment such as safety glasses and hearing protection. Match drilling speed and feed to the material being drilled, apply steady axial pressure, and avoid side loading. Replace the bit when carbide tipping shows significant wear or chipping to maintain drilling quality and safety.