Xi'an Heaven Abundant Mining Equipment CO.,LTD
Understanding polycrystalline diamond compact cutters — from 1308 inserts to scrap options — and how to choose the right supplier for your drilling and cutting needs.
When it comes to drilling through hard rock, nothing matches the performance of a pdc cutter. The polycrystalline diamond compact (PDC) cutter is the heart of modern drilling technology — a precision-engineered component that combines a synthetic diamond layer with a tungsten carbide substrate. Whether you are manufacturing pdc bit products for water well drilling, cutting stone in a quarry, or equipping an oilfield operation, the quality of your PDC cutters directly determines drilling speed, bit life, and overall project cost.
Yet many buyers struggle to navigate the wide range of cutter sizes, grades, and price points. New and used options exist. Some suppliers focus on premium oilfield-grade cutters while others specialize in cost-effective solutions for mining and water well applications. This guide breaks down everything you need to know about pdc cutters — from common types and specifications to practical sourcing advice that helps you get the right product at the right price.
A PDC cutter consists of two bonded layers: a polycrystalline diamond table (the cutting face) sintered onto a cemented tungsten carbide substrate (the base). The diamond layer provides extreme hardness and wear resistance — diamond is the hardest known material — while the carbide substrate supplies impact toughness and serves as the brazing surface for attaching the cutter to a drill bit body.
During drilling, the PDC cutter shears rock rather than crushing it. This shearing action is more efficient than the crushing mechanism used by traditional roller cone bits, resulting in higher rates of penetration (ROP) and longer bit life. The technology has evolved significantly over the past two decades: diamond tables have grown from under 1 mm to 2–4 mm thick, grain sizes have become finer for better wear-impact balance, and thermal stability has improved through cobalt leaching and interface engineering.
Key advantage: PDC cutters deliver 3–5 times the drilling footage of conventional carbide inserts in suitable formations, making them the dominant cutting element in modern fixed-cutter drill bits.
PDC cutters are identified by their diameter and total height, typically expressed in millimeters. The most widely used sizes in the industry include:
| Cutter Size | Diameter (mm) | Typical Applications |
|---|---|---|
| 0804 | 8 mm | Small-diameter PDC bits for geological exploration, core sampling |
| 0808 | 8 mm | Quarry mining, chain saw stone cutting, small drag bits |
| 1308 | 13 mm | Most versatile size — water well PDC bits, mining bits, stone cutting, general-purpose drilling |
| 1313 | 13 mm | Medium to large PDC bits, oil and gas drilling, harder formations |
| 1613 | 16 mm | Large-diameter PDC bits, heavy-duty oilfield drilling, deep well applications |
The 1308 size is by far the most popular across multiple industries. It strikes a balance between cutting aggressiveness and impact resistance, making it suitable for everything from water well drilling bits to stone cutting chainsaws. For manufacturers building their own pdc drill bit products, stocking 1308 cutters covers the broadest range of customer requirements.
One of the most practical decisions buyers face is whether to purchase new or used PDC cutters. Both options have legitimate use cases, and the right choice depends entirely on your application.
New PDC cutters offer maximum performance and consistency. They are essential for oil and gas drilling, deep water wells, and any application where bit failure carries high financial or operational risk. New cutters come with guaranteed diamond table thickness, documented impact resistance, and consistent brazing surfaces.
Scrap or used PDC cutters — typically recovered from decommissioned oilfield bits — present a highly economical alternative for less demanding applications. Stone cutting operations, quarry work, and shallow water well drilling can all benefit from used cutters at a fraction of the cost of new ones. The key is sourcing from a supplier who properly sorts and grades used cutters by size and condition.
Cost comparison: Scrap PDC cutters can cost 60–80% less than new equivalents, making them an attractive option for price-sensitive applications where ultimate performance is not the primary concern.
PDC cutters do not work in isolation. Their performance depends on how they are integrated into a complete drill bit design. The same supplier that provides your cutters should ideally understand the full drilling system, including:
3-blade PDC bits — Ideal for soft to medium formations, water well drilling, and shallow applications. The three-blade design offers maximum cleaning efficiency and high ROP.
4-blade PDC bits — Better stability in harder or fractured formations. The additional blade provides more cutter density for extended bit life.
Matrix body PDC bits — Superior erosion resistance for abrasive formations. The tungsten carbide matrix body withstands high-velocity drilling fluid better than steel body designs.
PDC core bits — For geological exploration and sample coring where core recovery quality is critical.
Working with a supplier that manufactures both PDC cutters and finished PDC bits gives you access to integrated expertise. Issues like cutter placement angles, back rake optimization, and hydraulic design are better addressed when the supplier understands the full product lifecycle.
Choosing the right supplier for PDC cutters involves more than comparing price lists. Here are the factors that separate reliable long-term partners from transactional vendors:
Product range completeness. A supplier should offer both new PDC cutters in multiple sizes (0804, 0808, 1308, 1313, 1613) and scrap/used options. The ability to source everything from one supplier simplifies logistics and quality control.
Quality certification. ISO9001 certification indicates that the supplier follows documented quality management processes. This is particularly important for cutters destined for oilfield or deep well applications.
OEM and customization capability. Not every drilling project fits standard specifications. A supplier that offers OEM services can customize cutter sizes, diamond table formulations, and chamfer designs to match your specific formation challenges.
Export experience. For international buyers, working with a supplier that has proven export logistics — including proper documentation, reliable shipping terms (FOB, CIF, CFR), and flexible payment options (L/C, T/T, PayPal) — reduces procurement risk.
Industry knowledge. The best suppliers understand the end-use applications of their cutters. They can advise on whether a 1308 cutter with a specific chamfer is better suited for water well drilling or stone cutting, and they can recommend complementary products like PDC bits, tricone bits, or core bits.
China has become a major production hub for PDC cutters and related drilling tools, offering competitive pricing without necessarily sacrificing quality — provided you choose the right partner. Established in 2010, Xi'an Heaven Abundant Mining Equipment CO.,LTD (TY Drill Bits) has been serving international buyers for over 15 years, with export sales accounting for 91–100% of total revenue.
Located in Xi'an, Shaanxi — a historical industrial base in central China — the company offers a one-stop service covering PDC cutters, PDC bits, tricone bits, core bits, rock drilling tools, and cutting tools. Their PDC cutter inventory includes both new production-grade cutters (0808, 1308, 1313, 1613 sizes) and cost-effective scrap/used PDC cutter options for stone cutting and quarry applications.
With ISO9001 certification, flexible OEM services, and experience shipping to markets worldwide under FOB, CIF, and CFR terms, the company provides international buyers with a reliable supply channel for drilling consumables. Lead times are consistently within 15 working days, and the team supports multiple payment methods including L/C, T/T, and PayPal for transaction convenience.
Looking for reliable PDC cutters at competitive prices? Whether you need new 1308 cutters for PDC bit manufacturing, scrap cutters for stone cutting, or a complete range of drilling tools, contact the team at TY Drill Bits today. Reach out to Ms. Lucy Li at lucy@tydrillbits.com or call +86 15389082037 to discuss your requirements and receive a customized quotation. With over 15 years of export experience and ISO9001-certified quality, TY Drill Bits is your trusted partner for drilling solutions.
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