Drill bit AWTools AW42899 — standard twist drill bit, metal/plastic/wood use

AWTools AW42899 is a standard twist drill bit designed for a range of drilling tasks in metal, plastic and wood, and adapted for more demanding materials when used as a masonry/hammer bit. Constructed from 40CR alloy steel with a YG8C tungsten carbide head, the bit combines a durable body and a wear-resistant cutting tip. The two‑cutter spiral geometry provides effective chip evacuation and improved drilling stability. The grooved SDS+ style shank secures the bit in compatible chucks and reduces the risk of unintended release during operation.

Advantages

The AWTools AW42899 offers a balanced combination of toughness and cutting performance thanks to its 40CR alloy steel body and carbide head. Its two‑cutter spiral design promotes consistent chip removal and lowers heat buildup, helping to extend tool life and maintain drilling accuracy. The grooved SDS+ shank provides reliable retention in hammer drills and rotary impact hammer drills, while the conventional fluted profile makes the bit versatile for manual and machine drilling applications.

Suitable for

• Drilling holes in metal, plastic and wood
• Masonry and concrete drilling when using hammer or rotary impact hammer drills
• Repair, construction and DIY tasks requiring a standard twist drill bit

Key specifications

• Material: 40CR alloy steel body with YG8C tungsten carbide head
• Geometry: 2‑cutter spiral fluted design for chip removal
• Shank type: Grooved SDS+ style shank for secure retention
• Intended use: Metal, plastic, wood; suitable for masonry materials when used with hammer action
• Compatibility: Suitable for hammer drills and rotary impact hammer drills, and for manual or machine drilling where applicable

How to use

Select the correct drill holder or chuck compatible with an SDS+ grooved shank and secure the AWTools AW42899 bit firmly before starting. For metal, plastic and wood, use appropriate speed and feed rates and apply steady pressure to maintain a straight cut. When drilling masonry, concrete, granite, natural stone, brick or ceramic tiles, fit the bit in a hammer drill or rotary impact hammer drill and use hammer action as required. Periodically withdraw the bit to clear accumulated chips and allow cooling; use cutting fluid when drilling metal to reduce heat and wear.

Usage recommendations

Use appropriate personal protective equipment and select drill speed, feed and cooling method based on the material. For prolonged masonry work, monitor the carbide tip for wear and replace the bit when cutting performance declines. Avoid excessive side loads to preserve tip geometry and extend service life.