Can you make non-standard coolant drills?

Yes. Special diameters, lengths, step drills and point angles are made to your drawing or sample from 5 pieces.

What quality documents can you provide?

Tools are measured on the machine during grinding, and a dimensional inspection report is available with your order. RoHS and REACH documents can be supported on request.

What payment methods do you accept?

L/C, T/T, Western Union, PayPal and MoneyGram. Goods ship from Shanghai port or by express.

2 Flute 3xd Carbide Inner Coolant Twist Drill for Hardened Steel

Name: 2 Flute 3xd Carbide Inner Coolant Twist Drill for Hardened Steel
Brand: CHANGZHOU DELEVEL TOOLS CO., LTD.
SKU: 2176679375

Jiangsu, ChinaCHANGZHOU DELEVEL TOOLS CO., LTD.

US$26.77-520.30

5 Pieces

Sample price:US$10.80/piece.Request sample

Product profile

Customization

Available

Customized

Standard Sizes and Custom

Standard

Factory Standard

Model NO.

RDT 3xD-12xD Internal Coolant Drill

Length

3 / 5 / 8 / 12 Times Diameter

Type

Twist Drill Bit

Material

Solid Carbide

Usage

Metal Drilling

Carbide Material

Solid Tungsten Carbide

Coolant

Internal, Through-Tool Channels

Flutes

Drilling Depth

3 / 5 / 8 / 12 Times Diameter

Diameter Range

D3-D16 mm

Point Angle

140 Degrees

Workpiece

Steel, Stainless Steel, Cast Iron, Titanium

Stock Status

Most Sizes in Stock (3-8 Times Diameter)

Made-to-Order Lead Time

About 15 Working Days

Raw Material

100% Original Carbide, No Recycled Material

Transport Package

1 PC Per Plastic Tube; 5 PCS Per Box

Specification

D3-D16mm, 3xD-12xD, Internal Coolant

Trademark

DELEVEL

Origin

Changzhou, Jiangsu

HS Code

8207709000

Production Capacity

50000PCS/Month

Key features

Solid Carbide: ground from 100% original tungsten carbide rod, no recycled material.

Internal Coolant: coolant flows through the drill to the tip, cooling the edge and flushing chips.

Depths: 3xD, 5xD, 8xD and 12xD standard series, D3-D16 mm.

In Stock: most 3xD, 5xD and 8xD sizes are in stock; 12xD in selected sizes.

Stainless Steel Drill: a dedicated 5xD stainless steel series, D3-D20 mm.

For Many Materials: steel, alloy steel, stainless steel, cast iron and titanium alloys.

Made to Drawing: special diameters, lengths, steps and coatings from 5 pieces.

Fast Reply: we reply within one working day; inspection reports on request.

Company profile

CHANGZHOU DELEVEL TOOLS CO., LTD.

Jiangsu, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableAverage Response Time: ≤0.88hTerms of Payment: LC, T/T, Western UnionInternational Commercial Terms(Incoterms): FOB, EXW, CIF

AI-Powered supplier vetting

SummaryCHANGZHOU DELEVEL TOOLS CO., LTD. is a China-based manufacturer/factory specializing in carbide drills, end mills, threading tools, modular tooling, and custom carbide tools. It reports ISO 9001 certification, more than 12 years of carbide-tooling experience, six production lines, six-to-ten R&D engineers, six-to-ten quality-control staff, and annual carbide end-mill output of 600,000 pieces. The supplier supports multiple customization modes, ODM, and OEM services for well-known brands, and reports inventory capability and off-peak lead times within 15 working days. However, written corrective-action and complaint-handling procedures are absent, overseas service infrastructure is limited, and the validity of manufacturing-capacity contracts and quality-assurance status is unknown. Financial-capacity entries are present for 2023–2025, but no sufficient non-monetary evidence establishes financial strength. Customer cases are not specifically documented.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and a limited company in China. Its listed products and business scope cover carbide and other metal tooling, consistent with a direct manufacturing supplier.

CertificationsThe supplier reports holding ISO 9001 certification for its management system. This is explicit evidence of a formal quality-management certification, although the slices do not provide certificate validity or scope details.

After-Sales capabilityThe supplier has no written procedures or records for corrective and preventive actions or effective complaint handling. It has inventory capability, but no overseas warehouse, showroom, agents, or branches; therefore, the documented after-sales framework is deficient despite some fulfillment support.

R&D capabilityThe supplier reports new products during the past year, ODM availability, and six-to-ten R&D engineers with total R&D experience stated at six-to-ten years. It lacks an available SDK, but the documented product-development and ODM activity supports innovation capability overall.

Production capacityThe supplier operates six production lines, reports 600,000 carbide end mills produced annually, employs six-to-ten quality-control staff, and states off-peak lead times within 15 working days. Inventory capability and a claimed on-time-delivery record further support production execution, although contract status and quality-assurance status remain unknown.

Customization capabilityThe supplier explicitly offers customization from samples, designs, full and minor customization, flexible customization, ODM services, and custom carbide tools. Its stated specialization in non-standard carbide tools and technical support directly supports strong customization capability.

Product Q&A

Q:Which drilling depths are standard?

3xD, 5xD, 8xD and 12xD, from D3 to D16 mm (8xD and 12xD up to D12 mm). Deeper drills from 16xD to 30xD are in our deep hole series.

Q:Are they in stock?

Most 3xD, 5xD and 8xD sizes are in stock. 12xD is stocked in selected sizes; other sizes are made to order in about 15 working days.

Q:Can they drill stainless steel and titanium?

Yes. We also stock a dedicated 5xD stainless steel drill, D3-D20 mm. Titanium machining is similar; tell us the alloy and we confirm the grade and coating.

Q:Can they drill aluminium?

Aluminium needs a sharp uncoated drill. Uncoated versions are available on request; tell us the size.

Q:What is the shank tolerance?

h7 as standard. h6 is available on request.