Rennie Tool Company Diamond Core Drill Bit is a core drilling accessory designed to cut accurate holes in concrete, brick and natural stone, suitable for wet or dry use. Tradespeople and confident DIYers can tackle flues, vents and service penetrations with greater consistency and less rework. Are you ready with the right adapters and a 200mm centre drill to get started?
⚡ At a Glance
- • Cutting Quality: Diamond rim produces clean holes through concrete, masonry and stone
- • Best for: Plumbers, electricians, builders, professional contractors and DIY enthusiasts
- • Not ideal for: Users expecting adapters or centre drills to be included with purchase
162mm x 150mm long diamond core bit with a 1/2" BSP thread for adapter compatibility. Laser-welded segments and barrel slots help strength and dust extraction while permitting wet or dry drilling.
Fast, clean holes - with laser-welded diamond segments
Diamond cutting segments are laser welded onto a steel barrel to concentrate cutting at the rim while resisting segment loss. Barrel slots aid debris and slurry movement away from the cutting face.
Aggressive cutting action and effective debris clearance make through-holes faster and neater when working in concrete, block and stone.
Work wet or dry - with a sealed, robust construction
The bit is designed for both wet and dry cutting methods, with welded joints that tolerate cooling water or dry operation. Material choice and construction reduce the risk of rapid wear under site conditions.
Flexibility to use water cooling on delicate surfaces or dry cutting where water is impractical keeps jobs moving under varied site constraints.
Easy adapter compatibility - with a standard 1/2" BSP thread
A 1/2" BSP threaded connection matches common core drill adapters, and SDS or hex shank adapters can be used depending on the drill type. A 200mm long centre drill is required for this core size.
Simple adaptation to SDS rigs or standard chucks makes the bit suitable for a wide range of drills once the correct adapters and centre drill are fitted.
✨ The 4 Key Reasons for Rennie Tool Company Diamond Core Drill Bit
- Laser-welded segments, - Adds strength for longer life under heavy site use
- Barrel dust slots, - Improve debris evacuation to maintain cutting speed
- Wet or dry capability, - Lets trades switch methods depending on site conditions
- 1/2" BSP thread compatibility, - Fits common adapters for SDS and standard drill chucks
📋 Technical Details at a Glance
- Category: Diamond core drill bit
- Size: 162mm x 150mm (as described)
- Thread: 1/2" BSP thread
- Use: Wet or dry drilling
- Material compatibility: Concrete, masonry, brick, block, granite, paving slabs, limestone, clay bricks, aerated block, asphalt, breeze block, sandstone, screed
❓ Frequently Asked Questions
Q: Are adapters and the centre drill included?
A: No. Adapters and the centre drill are not included and are sold separately, so plan to buy a suitable SDS or hex adapter and a 200mm centre drill for this core size.
Q: What thread and adapter types does it accept?
A: The bit uses a 1/2" BSP thread and is compatible with leading brands' core drill adapters; use an SDS adapter for SDS drills or a hex adapter for a standard chuck.
Q: Which materials can be drilled and can it be used wet or dry?
A: Suitable for concrete, masonry, brick, block, granite, paving slabs, limestone, clay bricks, aerated block, asphalt, breeze block, sandstone and screed, and designed for both wet and dry drilling.
🏆 Our Verdict
Tradespeople and experienced DIYers who need reliable, large-diameter holes in hard materials will find real value in the Rennie Tool Company Diamond Core Drill Bit. Laser-welded segments, barrel slots and standard 1/2" BSP thread compatibility combine to deliver durable cutting and straightforward adapter fitment. Remember to budget for adapters and a 200mm centre drill, as those accessories are required for use but are supplied separately.
