A central screw pulls the tip into its seat from the back of the body.

Which tip should I choose?

There are tip grades for harder and for softer workpiece materials. Tell us the material and hardness and we choose the grade.

Which sizes do you make?

Drill diameters from 12.5 mm upwards. The size table lists example body codes; send your hole size.

Rear Lock Crown Drill with Replaceable Tips for Steel

Name: Rear Lock Crown Drill with Replaceable Tips for Steel
Brand: CHANGZHOU DELEVEL TOOLS CO., LTD.
SKU: 2234192215

Jiangsu, ChinaCHANGZHOU DELEVEL TOOLS CO., LTD.

US$31.88-556.39

5 Pieces

Product profile

Customization

Available

Customized

Standard Sizes and Custom

Standard

Factory Standard

Model NO.

HLD Rear-Lock Crown Drill

Length

3 to 12 Times Diameter

Type

Crown Drill

Material

Carbide Head, Steel Body

Usage

Metal Drilling

Head Material

Cemented Carbide Head

Body

Steel Body with Internal Coolant

Drill Range

From 12.5 mm Diameter

Hole Depth

3 to 12 Times Diameter

Tip Lock

Central Screw From The Rear

Tip Grades

Hard and Soft Materials

Stock Status

Varies by Code, Confirm on Inquiry

Custom MOQ

5 PCS Per Size

Made-to-Order Lead Time

15-30 Working Days

Drawing Check

Drawing Confirmed Before Production

Transport Package

Head 1-2 PCS Per Box; Body 1 PC Per Box

Specification

Drill Dia. from 12.5 mm, Depth 3xD to 12xD

Trademark

DELEVEL

Origin

Changzhou, Jiangsu

HS Code

8207709000

Production Capacity

10000PCS/Month

Key features

Rear Lock: the carbide tip is pulled into its seat by a central screw.

Tip Grades: tips for hard materials and for soft materials on the same body.

Hole Depth: bodies for 3xD, 5xD, 7xD, 10xD and 12xD.

Large Diameters: drill diameters from 12.5 mm to 34 mm and larger.

Internal Coolant: coolant runs through the body to the tip.

In-Machine Change: change the tip with the body still in the holder.

Specials: special sizes from 5 pieces, 15-30 working days; drawing confirmed before production.

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: ≤0.92hTerms 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.