Can you produce non-standard sizes?

Yes, non-standard sized bits can be produced according to client requirements.

What types of core bits do you offer?

We offer A-Gauge, B-Gauge, N-Gauge, H-Gauge, P-Gauge, S-Gauge, U-Gauge, Z-Gauge, and various Metric series core bits.

Best Selling Diamond Core Bits for Hard Rock Drilling Nq Hq Pq Bq

Name: Best Selling Diamond Core Bits for Hard Rock Drilling Nq Hq Pq Bq
Brand: Changsha Xingtan Machinery Co., Ltd
SKU: 2027595722

Hunan, ChinaChangsha Xingtan Machinery Co., Ltd

US$50.00-200.00

1 Piece

Product profile

Customization

Available

Type

Core Drill

Usage

Metal Drilling, Well Drilling

Model NO.

Size

Bq Nq Hq Pq Sw Uw

Color

Weight

1kgs

Material

Diamond

Crowed Height

8mm

Drilling Rock

Very Hard

Product Capacity

10000 Per Months

Original

China

Avaiable Size

All Size

Mainly Use Place

All Hard Rock

Transport Package

by Sea or by Air

Specification

1KGS

Trademark

Xingtan

Origin

China

HS Code

8207191000

Production Capacity

10000PCS

Key features

Customizable Design: Size, color, and specifications designed by customers to meet specific needs.

Wide Size Range: Available in all standard sizes including AQ, BQ, NQ, HQ, PQ, SW, UW and non-standard options.

High Efficiency Drilling: Features fast penetration rates and long service life due to uniform diamond distribution.

Diverse Crown Profiles: Offers W, Flat, Semi-round, Cross, and Gear profiles for various rock conditions.

Customizable Matrix Height: Options include 6-8mm for cost-effectiveness, 8-10mm for long life, and 12-16mm for super life.

Flexible Thread Options: Standard Q threads and client-specific thread types are available.

Optimized Waterways: Various waterway designs ensure better flushing in different ground conditions and systems.

Company profile

Changsha Xingtan Machinery Co., Ltd

Hunan, China

Business Type: Manufacturer/FactoryExport Year: 2008-07-01 CertifiedNearest Port: Shanghai PortAverage Response Time: ≤1.55h CertifiedTerms of Payment: LC, T/T CertifiedInternational Commercial Terms(Incoterms): FOB, CIF

AI-Powered supplier vetting

SummaryChangsha Xingtan Machinery Co., Ltd. is identified as a Chinese manufacturer/factory based in Hunan, specializing in drilling rigs, drill tools, core bits, mud pumps, casing, and related testing equipment. The supplier reports ISO 9000 and ISO 9001 certification, more than 10 production lines, 11–20 years of staff and R&D engineer experience, and 6–10 quality-control staff. It states that standard and customized products are available and indicates export activity across multiple regions, with stated lead times of within 15 workdays in both off-peak and peak seasons. Evidence of customer activity is limited to two recorded transactions for each of four product descriptions involving one buyer in Tanzania; these records do not establish broad customer coverage or product-specific performance. Financial strength and after-sales capability cannot be reliably assessed from the provided information.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and operates as a limited company in Hunan, China. This directly supports its positioning as a manufacturing supplier rather than solely a trading intermediary.

CertificationsThe supplier reports holding ISO 9000 and ISO 9001 management-system certifications. These stated certifications provide explicit evidence of formal quality-management-system recognition.

R&D capabilityThe supplier reports 11–20 years of R&D engineer experience, advanced production technology, and the ability to provide products according to customer drawings and requirements. This supports an established technical-development capability, although no specific patented technology, new product record, or R&D output is provided.

Production capacityThe supplier reports more than 10 production lines, 6–10 quality-control staff, and lead times within 15 workdays during both off-peak and peak seasons. Together with its manufacturer/factory classification, these statements explicitly support substantial production and delivery capability.

Customization capabilityThe company explicitly states that, in addition to standard products, it provides customized products based on clients' drawings and requirements. This is direct evidence of customization capability, although the slices do not define the engineering scope or customization limits.