SDS Plus drill bit AWTools QUADRO XTREME 16 x 450 mm, model AW43668BL

SDS Plus drill bit AWTools QUADRO XTREME 16 x 450 mm is a rotary‑hammer accessory designed for SDS Plus chucks. With a 16 mm cutting diameter and a 450 mm overall working length, it is intended for drilling deep holes in masonry, concrete and similar mineral substrates. The bit’s QUADRO XTREME tip geometry and black surface treatment are engineered to improve percussion cutting efficiency and to help evacuate dust while maintaining wear resistance during repetitive use.

Advantages

The QUADRO XTREME tip geometry concentrates impact energy for faster penetration and reduced jamming in reinforced and dense materials. The SDS Plus shank ensures secure retention and straightforward tool change in compatible hammer drills. A black finish provides additional protection against corrosion and abrasion, extending service life when used under normal conditions.

Suitable for

• Drilling 16 mm diameter holes in concrete for anchors and dowels
• Through and deep holes in masonry walls and blocks
• Preparing fixings in reinforced concrete where percussive action is required

When it may not be suitable

This drill bit is not intended for use in handheld non‑hammer drills or in materials such as wood, ceramic tiles or metal where a different flute geometry and coating are required. It may perform suboptimally in very soft or highly abrasive materials designed for specialist bits.

Key specifications

• Shank type: SDS Plus
• Cutting diameter: 16 mm
• Working length: 450 mm
• Tip geometry: QUADRO XTREME
• Finish: black protective coating
• Intended materials: masonry, concrete and similar mineral substrates

How to use

Install the SDS Plus shank into a compatible rotary‑hammer drill according to the tool manufacturer’s instructions. Use the hammering function for drilling into concrete and masonry, applying steady axial pressure without forcing the bit. Withdraw the bit periodically to clear dust and reduce heat build‑up; when drilling deep holes, remove debris with compressed air or a vacuum to improve cutting efficiency. Replace the bit if cutting performance noticeably decreases or if the tip is damaged.

What to consider before purchase

• Verify that your rotary‑hammer drill accepts SDS Plus shanks.
• Confirm that 16 mm diameter and 450 mm working length meet your hole size and depth requirements.
• Consider whether a carbide‑tipped or different geometry bit is needed for heavily reinforced concrete or specialised materials.

Usage recommendations

For best results in concrete and masonry, use the hammering mode at moderate speed settings, keep the bit cool by periodically withdrawing to clear dust, and use appropriate personal protective equipment (safety glasses, dust mask, hearing protection) when drilling.