Mexco DCX90 11pc Slotted Diamond Core Set

Name: Mexco 11 Piece DCX90 Diamond Core Set | In-Stock & Ready to Roll
Brand: mexco
SKU: A10DCDKIT57
Price: 109.23 GBP
Availability: InStock

£109.23£131.08 EX VATINC VAT

The Mexco DCX90 11 piece diamond core set covers 38mm to 127mm, ideal for plumbers, builders and general tradespeople drilling through masonry. Includes four adaptors, a pilot drill and drift key. All items available individually for restocking.

Credit Plans Available

Description

The Mexco 11 piece DCX90 diamond core set is a well-thought-out kit for anyone who regularly needs to put holes through masonry on site. Covering five core sizes from 38mm right up to 127mm, it handles the kind of range that a plumber, builder or general tradesman actually encounters day to day. Whether you’re chasing through a block wall for pipework or cutting a duct penetration, this set has the size you need without rooting through a van shelf for the right bit.

What makes the DCX90 range worth using is the slotted and fluted steel barrel design. The fluting pulls waste material out of the cut as you go, which keeps the core running cooler and reduces the chance of the drill binding mid-cut. Anyone who’s had a core seize in a hard block wall will appreciate that detail.

What’s in the Mexco DCX90 Diamond Core Set

The kit contains five dry core drills at 38mm, 52mm, 65mm, 117mm and 127mm. Alongside those you get four adaptors: 80mm SDS, 80mm hex, 250mm SDS and 250mm hex. That covers the two most common drive fittings in most professional drills, and the longer 250mm adaptors give you extra reach where wall thickness demands it. A 10mm by 175mm A-taper pilot drill and a drift key round out the set. The pilot drill keeps your cores centred on the mark, which matters more than people think when you’re drilling next to a lintel or cutting a tight cable entry.

Everything is stored in a robust plastic and aluminium case that keeps the set organised and protects the cores in transit. Importantly, all eleven items can be bought individually, so if you burn through the 65mm core on a run of jobs, you’re not forced to replace the whole set.

Using the DCX90 Set Correctly

These are dry diamond core drills, so no water feed is required, but they do need a decent motor behind them. Mexco specify a minimum 850W drill with a slipping clutch. The slipping clutch is not optional; if the core grabs suddenly in hard aggregate, a machine without one will try to spin your wrist instead of slipping. A good SDS Plus or SDS Max drill in rotary-only mode is the usual choice. Don’t try to run these from a lightweight combi drill and wonder why the results are poor.

The Mexco DCX90 diamond core set is a practical, site-ready kit at a sensible price point, with the individual restocking option making it a long-term investment rather than a one-off purchase.

Pro Tip: Always run these cores in rotary-only mode on your SDS drill, not hammer action. Hammering with a diamond core will crack the segment bonding and wreck the bit far faster than the masonry ever would.

Applications

This set is used primarily by plumbers and heating engineers cutting pipe penetrations through internal block walls, external brickwork and concrete floors. Builders and first fixers use the larger sizes for duct entries, soil pipe runs and cable management penetrations. The range of sizes makes it equally useful for small 38mm cable entries up to 127mm soil pipe holes. It works across a wide spread of masonry substrates including dense concrete block, facing brick, aerated block and sandstone, though performance varies with material hardness.

Best For

Pipe penetrations through masonry
Duct and cable entries
Soil pipe holes in block walls
General masonry coring on site
Plumbers, builders and first fixers

Compatible With

SDS Plus and SDS Max drills via included adaptors
Hex drive drills via included adaptors
850W minimum drill motor
Drill motors with slipping clutch

Kit Contents

38mm dry core drill
52mm dry core drill
65mm dry core drill
117mm dry core drill
127mm dry core drill
80mm SDS adaptor
80mm hex adaptor
250mm SDS adaptor
250mm hex adaptor
10mm x 175mm A-taper pilot drill
Drift key

Not suitable for: Not suitable for use with wet core drilling setups or on ceramic tiles, glass or glazed surfaces. These cores are designed for masonry only and should not be used on steel, timber or composite materials.

Usage

Fit the appropriate adaptor to your drill for the drive type you're using, then attach the core drill securely. Insert the pilot drill through the centre of the core and mark your hole position clearly before you start. Use rotary mode only, no hammer action.

Apply steady, consistent pressure and let the diamond segments do the work. Forcing the core too hard into the face increases heat and wear. The fluted barrel design removes debris naturally as you drill, but pause occasionally on deeper cuts to allow waste to clear. Once through, use the drift key to knock the core slug out of the barrel before your next cut.

Select the correct core size for your application and attach the matching adaptor to your drill
Set your drill to rotary-only mode, no hammer action
Insert the A-taper pilot drill through the core centre and mark your hole position on the wall
Start the cut at low speed to let the pilot drill establish the centre point
Increase to working speed and apply firm, steady pressure without forcing
Pause on deeper cuts to allow the fluted barrel to clear debris and prevent overheating
Once the cut is complete, withdraw the core drill and use the drift key to eject the masonry plug from the barrel

FAQs

What drill do I need to use with the Mexco DCX90 core set?

You need a drill with a minimum 850W motor and a slipping clutch. An SDS Plus or SDS Max drill set to rotary-only mode is the standard choice on site. The slipping clutch is a genuine requirement, not a suggestion. If the core grabs in hard aggregate, a machine without one will transfer the torque straight to the operator.

Can I buy replacement cores individually if I wear one out?

Yes. All eleven items in the set are available individually from the Mexco DCX90 range, so you can restock just the core size you've used up without buying a new kit. That makes this a practical long-term set rather than a single-use purchase.

Technical Information

The DCX90 cores feature diamond-tipped segments bonded to slotted and fluted steel barrels. The slotting and fluting is machined to draw masonry dust and debris clear of the cutting face during dry use, reducing heat build-up without the need for water feed. Four adaptors covering SDS and hex drives in two lengths give broad compatibility with professional drill platforms. The case is constructed with a plastic shell and aluminium reinforcement to protect cores during transport and storage.

Core Sizes	38mm, 52mm, 65mm, 117mm, 127mm
Drive Types	SDS Plus, SDS Max, Hex
Adaptor Lengths	80mm, 250mm
Pilot Drill	10mm x 175mm A-Taper
Drilling Method	Dry diamond core drilling
Minimum Drill Power	850W
Required Drill Feature	Slipping clutch
Piece Count	11
Case Type	Plastic and aluminium carry case
SKU	A10DCDKIT57