Drill bit Dedra WPQ1660 — diameter 1.6 cm, 135° point angle, for concrete/brick/stone/aerated concrete

Single Dedra WPQ1660 drill bit with a 1.6 cm diameter and a 135° point angle designed specifically for drilling in masonry materials such as concrete, brick, natural stone and aerated concrete. The bit is intended for use in rotary and hammer drilling modes on rotary hammer drills and hammer drills where penetration into hard and porous masonry is required. Supplied as one piece, this masonry drill bit is suitable for creating clean anchor and fastener holes as well as openings for building services.

Advantages

The Dedra WPQ1660 drill bit provides a large-diameter cutting face and a 135° point angle that help maintain drilling direction and reduce walking at the start. Its tip geometry and hardened working flutes are made for efficient material removal in concrete, brick and stone while resisting wear under repeated use. The single-piece supply makes it easy to select the correct diameter for specific tasks and keeps inventory simple for both professional tradespeople and DIY users.

Suitable for

• Drilling anchor and plug holes in concrete and brick
• Creating openings for electrical and plumbing conduits in masonry
• Installing fasteners, through-bolts and chemical anchors
• General masonry drilling in natural stone and aerated concrete

Key specifications

• Diameter: 1.6 cm
• Point angle: 135°
• Intended materials: concrete, brick, natural stone, aerated concrete
• Drilling modes: rotary and hammer drilling
• Pack quantity: single piece

How to use

Fit the drill bit in a compatible chuck or SDS holder according to the drill manufacturer’s instructions, ensuring it is securely clamped. Select the appropriate drill mode (rotary or hammer) based on the masonry type and the tool capability. Start drilling at low speed to establish the hole, then increase speed and apply steady pressure without forcing the bit. Periodically withdraw the bit to clear dust and allow cooling; for deep holes, clear debris frequently to maintain cutting efficiency. Use appropriate personal protective equipment such as safety glasses, hearing protection and a dust mask when working with masonry.

Usage recommendations

For best results, match drill speed and hammer action to the masonry type: lower speed and light hammering for aerated concrete, higher speed and hammering for dense concrete or natural stone. Use water only if the drill and bit are rated for wet use; otherwise keep the bit clean and let it cool between long drilling cycles. Verify hole diameter and depth against anchor or fastener specifications before installation.