Heavy drilling tools and refinery equipment
Drill bits
A PDC bit shears the formation with polycrystalline diamond cutters. It is selected for the rock, not from a single hardness number.
Polycrystalline diamond compact cutters are diamond tables on a tungsten-carbide substrate, set on a steel or matrix body. The bit fails the rock in shear as it rotates. It is a common choice in many oil and gas formations. It is the wrong bit where the formation, the vibrations or the dulling mechanism call for a roller-cone bit instead.
Roller-cone bits, milled-tooth or tungsten-carbide insert, are a separate tool. They crush and gouge the rock with three cones. We will quote them when the enquiry says so. The photographs on this page are PDC bits. We will not label a PDC bit as a roller-cone bit.
The order should name the hole size, the connection, the formation as the customer knows it, and any preference for body material, cutter size and blade count. Operating limits belong on the maker's sheet for that bit, attached when we have it.
| Duty | Shearing the formation at the bottom of the hole |
|---|---|
| Cutter | Polycrystalline diamond on a carbide substrate |
| Named on the order | Hole size, connection, formation, blade and cutter preference |
| Not this product | Roller-cone and milled-tooth bits, which are quoted separately |
| Evidence | Bit record and recommended parameters only from the maker's sheet |
A datasheet will be attached when measured results are on file.
Request a quoteWhat it is used for
The cutters shear the formation as the bit turns. This is the bit to specify when the programme calls for a PDC bit. A roller-cone bit is a different purchase. The second photograph, in the gallery, is a PDC bit in a workshop and is also not a roller-cone bit.
The order
We quote the piece you name. A missing size or standard is a question, not a guess.
The diameter you need to drill.
The pin that matches the collar or motor.
What you know about the rock, however short.
Supply
The specification written on the order.
Mill or material certificates when the maker provides them.
Identity marks checked against the packing list.
A performance figure is published only when a datasheet is attached.
Use the quote button. Include the duty, the quantity and where it has to be delivered. We reply on business days.
Write to info@edatm.com or telephone +44 7570 624325. Replies go out on business days, Monday to Friday, 08:30–18:00.
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