What is a step reamer?

One tool with two or more diameters that finishes stepped bores in one pass, saving tool changes and keeping the diameters concentric.

What do you need for a step reamer?

A drawing with each diameter, tolerance, step length and angle, plus the workpiece material.

Carbide Drill Reamer for Steel and Aluminum, Made to Order

Name: Carbide Drill Reamer for Steel and Aluminum, Made to Order
Brand: CHANGZHOU DELEVEL TOOLS CO., LTD.
SKU: 2176604575

Jiangsu, ChinaCHANGZHOU DELEVEL TOOLS CO., LTD.

US$3.63-203.51

5 Pieces

Sample price:US$10.80/piece.Request sample

Product profile

Customization

Available

Standard

Non-Standard

Handle Type

Straight Shank

Model NO.

Carbide Step Reamer, Made to Drawing

Usage Mode

Machine Reamer

Material

Cemented Carbide

Type

Made to Order

Carbide Material

Solid Tungsten Carbide

Design

Two or More Diameters in One Tool

Diameter Range

From 0.9 mm, Larger to Order

Coolant

External, Internal to Order

Shank

Straight Shank

Stock Status

Made to Order

Custom MOQ

5 PCS Per Size

Made-to-Order Lead Time

15-30 Working Days

Drawing Check

Drawing Confirmed Before Production

Raw Material

100% Original Carbide, No Recycled Material

Transport Package

1 PC Per Plastic Tube; 5 PCS Per Box

Specification

Steps and Lengths to Drawing

Trademark

DELEVEL

Origin

Changzhou, Jiangsu

HS Code

8207709000

Production Capacity

10000PCS/Month

Key features

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

Several Diameters: two or more diameters finished in one pass, keeping the bores concentric.

Made to Your Drawing: step diameters, lengths and angles ground as drawn.

Hole Finishing: ground for H7 holes; tighter tolerances confirmed against your drawing.

Coolant: internal coolant to order for deeper bores.

Made to Order: from 5 pieces per size, 15-30 working days depending on the process.

Regrinding: worn reamers can be reground; regrinding makes the diameter slightly smaller.

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: ≤1.04hTerms 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:Do you have reamers in stock?

No. Every reamer is made to order for your hole size, tolerance, material and hole type, from 5 pieces per size.

Q:What do you need for a quote?

Hole diameter and tolerance, workpiece material and hardness, through or blind hole and depth, flute type, coolant, shank and overall length, and quantity. A drawing is best.

Q:What tolerance can you hold?

We grind reamers for H7 holes. Tighter tolerances depend on material, machine and set-up, and we confirm them against your drawing before quoting.

Q:Straight or spiral flute?

Straight flutes suit through holes and short-chipping materials. For blind holes we recommend spiral flutes that carry chips out; we make both to order.

Q:How long does it take?

15-30 working days depending on the difficulty and the number of operations. We confirm the drawing before production.