WS39 casing tooth
JM cutter tooth
B47K22 bullet toothDRILLNOVA / CORE BARRELS
Core barrels
Compare the cutting configurations.
Start with roller bits or bullet teeth. Review the cutting arrangement, then specify a complete barrel, a cutting ring or replacement parts.
Choose a cutting configuration
Both form an annular cut around the rock core. Compare the cutters and mounting, then review the fabrication and assembly details for each configuration.
Compare the two configurations
Compare the complete cutting arrangement. Similar barrel dimensions alone do not confirm that the cutting parts are interchangeable.
Roller-bit barrel
- Positioning
- Inner and outer cutting paths, leg orientation and working height.
- Replacement interface
- Leg or holder interface and the condition of the supporting ring.
- What to inspect
- Cone movement, insert and leg damage, scrapers and guide condition.
Bullet-tooth barrel
- Positioning
- Holder position, tooth projection and the specified cutting arrangement.
- Replacement interface
- Tooth shank, holder seat and retaining components.
- What to inspect
- Tip and body wear, seating, tooth movement and retention.
Select with the ground description, rig interface and complete tool drawing. Any conversion also requires a review of the retained steelwork.
Roller-bit core barrels
Roller bits are positioned around the cutting ring. Their position, orientation and working height define the installed cutting arrangement.
Key checksLeg or mounting interface, cutter spacing, scrapers and guides.
Explore roller-bit barrels
Bullet-tooth core barrels
Bullet teeth sit in holders around the cutting ring. The teeth, holders and retention parts form the installed cutting assembly.
Key checksTooth projection, holder position, seat condition and retention.
Explore bullet-tooth barrelsWhat do you need supplied?
A new tool and a rebuild start with different checks. Define the scope before comparing quotations.
Complete core barrel
Define the cutting diameter, barrel dimensions, connection and cutting layout for the complete assembly.
Enquire about a complete barrelCutting ring assembly
Provide the existing shell and ring dimensions. Review the joining area and retained steelwork before planning a replacement.
Enquire about a cutting ringReplacement cutting parts
Match the installed model and mounting. Check the surrounding ring, holders, scrapers and guides at the same time.
Need help choosing?
Let’s define your core barrel.
Send the information below with your quantity and delivery destination. Use the core-barrel enquiry checklist to prepare your enquiry.
- Required cutting diameter and barrel dimensions
- Rig model and connection drawing or dimensions
- Ground description, rock photos or available test data
- Existing tool photos or the proposed assembly drawing