
Diamond Core Bits
Hollow cylindrical bits with diamond segments at the cutting face, used to drill clean penetrations through concrete, masonry and stone for services, anchors and sampling. SES holds the range as an authorised Tyrolit distributor, covering diameter range 8 mm to 500 mm; barrel lengths 150, 300, 400, 450 mm standard; connection 1¼" UNC male, ½" BSP female, M16, SDS-plus/max; segment height 7 mm to 10 mm. Executions include wet core bits for reinforced concrete, dry core bits for masonry, tile drilling bits, SDS-mounted core bits, among others. It is specified most often into service penetrations through slabs and walls and anchor and dowel holes in structural concrete. Every part is genuine Tyrolit through official channels, with designation, specification and options confirmed against your duty before it ships — supplied from Kolkata and our branch network, with breakdown cover that does not sit in an inbox.
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Supplying India’s Industrial Names.
From integrated steel plants to power utilities and EPC majors — the works that cannot afford a counterfeit part specify through SES.










































Operation
Wet and dry drilling
Diameters
8 mm to 500 mm
Connections
1¼" UNC, ½" BSP, M16, SDS
Standard
EN 13236

Where it runs.
You will find Diamond Core Bits in the parts of a plant where this particular duty actually occurs. In practice that means service penetrations through slabs and walls, anchor and dowel holes in structural concrete, core sampling for structural assessment, and equally ducting and conduit routing, drainage openings in civil works, tile and façade drilling on finishing work. What links them is the duty rather than the machine name — operation: Wet and dry drilling. If your installation is not on that list it matters less than you would think: the operating condition decides the specification. Send us the load, the speed, the running temperature and the environment it runs in, and we will match it to the right execution in the Tyrolit range and confirm what is in stock.
Specify it against the duty.
Specification here follows the operating condition, not the catalogue. Heavily reinforced structural concrete — A wet bit on a rig with a reinforcement-rated segment; hand-held dry drilling will stall on the first bar. No water permitted — occupied or finished areas — A dry bit with dust extraction and a vented body, and withdraw regularly to clear the core. Small diameter through tile or a finished surface — A tile-specific bit with a guide, to stop the bit walking and chipping the glaze. Where two of those apply at once, specify for the harsher of the two — under-specifying is what puts the part back on the bench a month later. Send us the duty and we will confirm the execution.

Ordering this from SES.
Match the bit connection to the rig before ordering — 1¼" UNC and ½" BSP look interchangeable across a counter and are not. Send us the machine model with the enquiry. Send the designation off the failed part and we will confirm the Tyrolit equivalent and stock position.
