Made in China High Quality Clay Soil and Hard Rock Rib Core Drill Bit

• Customization: Available
• Type: Core Drill
• Usage: Metal Drilling, Well Drilling, Rock Drilling
• Model NO.: LH-DB
• Certification: API
• Color: All Color Available
• Machine Type: Drilling Tool
• Material: Diamond & Sintered Carbide
• Processing Type: Casting
• Use: Ore Mining
• MOQ: 1 Piece
• Transport Package: Carton or Wooden Case
• Specification: 75-170mm
• Trademark: LH
• Origin: China
• HS Code: 8207191000
• Production Capacity: 100000 Pieces/Year

Product Description

Diamond Core Drill Bit

The PDC core bit is also called a hollow bit,a thin tubular multi - toothed bit,the drill body is inlaid with carbide plates.
The purpose of core-taking is to obtain complete stratigraphic decomposition data during exploration, development, and construction. Through a large number of core analysis and research to better formulate a reasonable development and construction program.
Use the core analysis data to understand the strength of different formations, such as drill ability and abrasiveness, in order to guide drilling operations and achieve better drilling efficiency.
The distribution of oil, gas and water in the oil and gas is analyzed from the core sampling of the target formation, and the porosity permeability and the oil and gas saturation as well as the effective thickness of the oil and gas layers is calculated. Thus producing more valuable oil and gas fields.

Specification

Strata Grading Instructions

Grade 1 loose soil: secondary loess, secondary laterite, soft sandy soil without gravel and breccia, diatomaceous earth
Grade 2 loose rocks: loess, laterite, peat, clay, sand, kaolin
Grade 3 soft rocks: strongly weathered shale, slate, dry pasture and schist, slightly cemented sand
Grade 4 slightly softer rocks: shale, sandy shale, oil shale, carbonaceous shale, calcareous shale, sand-shale interbedded, argillaceous limestone
Grade 5 slightly harder rock: gravel and gravel layers, collapsible layers, argillaceous slate, sericite chlorite slate, schist, limestone
Grade 6-7 medium hard rock: chlorite, mica, slate, dry pasture, schist, silicified limestone, calcite
Grade 8-9 hard rock: silicified mica, gneiss, basalt, diabase, pyroxenite, quartz Anshan porphyry
Grade 10-11 hard rock: granite, granodiorite, gneiss, rhyolite, quartzite
Level 12 Hardest Rocks: Quartzite, Jasperite, Cape Shale, Corundum, Quartz, Flint, Jasper

Product Parameters
Item	OD	ID	Height	Teeth No.	Corebarrel
75	75	54.5	95	4/9	73
94	94	74	120	6	89
113	113	89	120	8	108
133	133	109	130	10	127
153	153	129	145	12	146
171	171	147	145	14	168
200	200	174	150	16	194
219	219	193	150	18	219
245	245	219	200	20	225
275	275	249	200	22	273
325	325	299	200	24	325

Company Profile

Dazhou Lihua Drilling Equipment Co.,Ltd

a leading Chinese manufacturer of drilling equipment and tools with over 10 years of expertise. Certified with ISO 9001, we export to 20+ countries, offering reliable machinery backed by R&D innovation and strict quality control.
Advanced Features:
Competitive pricing & bulk discounts
Fast shipping & customs clearance support
Project solutions

Drill Rig

Drill Pipe

FAQ

Q: What's the lead time for orders?
A: Standard models ship in 7-10 days; customized units require 15-20 days.

Q: Do you provide after-sales service overseas?
A: Yes, we have partnered service centers.

Q: Are you a factory or trading company?
A: We are a professional factory.

Q: What documents do you provide for export?

A: Full export package (Commercial Invoice, Packing List, Bill of Lading, COC, etc.).

Q: How do I place an order?
A: Contact us via email/phone for a quote, then confirm with a PO.