Drill bit AWTools AW42831, 79 g lightweight metal/wood drilling accessory

AWTools AW42831 drill bit is a compact 79 g drilling accessory designed for general-purpose use with hand drills, drill drivers, hammer drills and rotary hammers. Constructed from 40CR alloy steel with a carbide tip and two cutting edges, the bit provides a balance of toughness and cutting performance for routine work in metal and wood as well as heavy building materials. The double spiral flute helps evacuate chips and reduces heat build-up, while the grooved SDS+ shank secures the bit in compatible chucks and prevents accidental release during operation.

Advantages

The combination of 40CR alloy steel body and a carbide tip yields wear resistance at the cutting point while maintaining a resilient shank. Two cutting edges deliver a stable drilling action and improved hole quality. Double spiral flutes ensure efficient chip removal and lower operating temperature during extended use. The grooved SDS+ shank offers secure retention in hammer drills and rotary hammers, reducing bit wobble and improving control.

Suitable for

• Drilling in masonry, concrete and brick
• Drilling in natural stone and granite
• Tile and ceramic drilling with appropriate technique
• General metal and wood drilling for workshop and home projects
• Use with hammer drills and rotary hammers that accept SDS+ shanks

Key specifications

• Material: 40CR alloy steel body with carbide tip
• Cutting geometry: two cutting edges
• Flute design: double spiral flute for chip evacuation
• Shank type: grooved SDS+ shank for secure fit
• Weight: 79 g (lightweight design)

How to use

Insert the grooved SDS+ shank into a compatible drill or rotary hammer and ensure it locks in place before starting. Select an appropriate speed and hammer setting according to the material: lower speed with hammer action for masonry and higher steady speed without hammering for metal and wood where applicable. Apply steady, moderate pressure and allow the bit to do the cutting—avoid excessive force that could overheat or blunt the carbide tip. Periodically withdraw the bit to clear debris and inspect the cutting edges for wear.

Usage recommendations

For masonry, concrete and stone, use the hammer action on compatible tools and keep the bit perpendicular to the work surface. For tile and ceramic, consider starting with a pilot point or use lower speed and light pressure to avoid cracking. Use water cooling or intermittent operation to reduce heat when drilling dense materials. Replace the bit when the carbide tip shows significant wear or the drilling performance degrades.