Drill bit AWTools AW42846 – 300 g weight, general-purpose metal/wood drilling

AWTools AW42846 – a 300 g general-purpose drill bit designed for use with hand drills, hammer drills and rotary hammers. Made from 40CR alloy steel with a carbide tip and two cutting edges, this bit combines material strength with a wear-resistant cutting point. The double spiral flute supports efficient debris removal to reduce heat buildup during routine drilling in a range of building materials.

Advantages

The combination of 40CR alloy steel body and a carbide tip provides improved durability and longer life compared with plain-steel bits. Two cutting edges deliver predictable hole quality while the double spiral flute evacuates chips effectively, reducing clogging and overheating. The grooved SDS+ shank ensures secure retention in compatible chucks and prevents the bit from slipping during hammering or rotary operation. The design supports use across multiple materials, simplifying tool choice for common repair and renovation tasks.

Suitable for

• Drilling holes in masonry and concrete for anchors and fixings
• Work with brick, natural stone and granite
• Cutting holes in ceramic tiles for plumbing and electrical installations
• Routine DIY repairs and renovation projects using hammer drills or rotary hammers

Key specifications

• Weight: 300 g
• Material: 40CR alloy steel body with carbide tip
• Cutting geometry: two cutting edges
• Flute type: double spiral flute for efficient chip removal
• Shank type: grooved SDS+ shank for secure retention
• Compatible tools: hand drills, hammer drills, rotary hammers
• Suitable materials: masonry, concrete, granite, natural stone, brick, ceramic tiles

How to use

Select the appropriate drill or rotary hammer mode for the material to be drilled and insert the grooved SDS+ shank into a compatible chuck until it locks. Start drilling at low speed to establish the hole, then increase speed steadily while applying consistent forward pressure. Use periodic retraction to remove accumulated debris and allow the bit to cool. For tiles and finished surfaces, use controlled pressure and consider a backing material to avoid chipping.

Usage recommendations

Use appropriate personal protective equipment (safety glasses, gloves and hearing protection) and ensure the drill and bit are suitable for the selected material. Replace the bit if the carbide tip becomes chipped or blunt to maintain drilling performance and hole quality.