Drill bit AWTools AW42839 — AWTools AW42839, metal/wood drilling bit

The AWTools AW42839 drill bit is a versatile drilling accessory designed for demanding drilling in construction and renovation tasks. Made from 40Cr alloy steel with a carbide tip and two cutting edges, the bit combines strength and cutting precision. Its double spiral flute design helps evacuate chips and dust, reducing heat build-up during intensive drilling. The grooved SDS+ shank secures the bit in compatible hammer drills and rotary hammers, providing stable operation for masonry and hard-material work.

Advantages

This drill bit delivers a durable cutting edge thanks to the carbide tip and 40Cr alloy steel body, ensuring longer service life under heavy use. The double spiral flute improves chip removal and cooling, which protects both the bit and the tool. The grooved SDS+ shank offers reliable retention in hammer drills and rotary hammers, minimising slippage during impact drilling. The two-cutting-edge geometry provides efficient and accurate hole formation in hard materials.

Suitable for

• Drilling holes in masonry, concrete and brick
• Working with granite, natural stone and ceramic tiles
• Use with hammer drills and rotary hammers for impact drilling
• Workshop repairs and on-site construction tasks

Key specifications

• Material: 40Cr alloy steel with carbide tip
• Cutting geometry: two cutting edges
• Flute type: double spiral flute for chip evacuation
• Shank type: grooved SDS+ for secure retention
• Intended materials: masonry, concrete, granite, natural stone, brick, ceramic tiles

How to use

Install the bit into an SDS+ compatible hammer drill or rotary hammer until it locks into the chuck. Select the appropriate drill mode (impact/hammer setting) when working with concrete, masonry or stone; use rotary-only mode for delicate tile drilling if required. Apply steady pressure and allow the tool to work at its rated speed; avoid excessive force that could damage the bit. Periodically withdraw the bit to clear debris and prevent clogging of the flutes. After use, clean the bit of dust and store it in a protective case to prevent corrosion and tip damage.

Usage recommendations

For best results when drilling hard materials, start with a pilot hole where possible, use appropriate personal protective equipment (eye and hearing protection, dust mask), and cool the bit intermittently by withdrawing to clear debris. Match drill size and tool power to the task and inspect the carbide tip before use to ensure safety and consistent performance.