Drilling & Tapping

Custom Machined Sleeves with Precision Drilling & Tapping

SleeveMFG manufactures custom-engineered sleeves, bushings, and rotational components directly from your technical drawings. We specialize in precision CNC machining for industrial applications, including complex features like precision drilling, tapping, keyways, and cross-holes.

We don't sell catalog parts. We machine the exact component your assembly requires.

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Precision machined sleeve with drilled and tapped holes

Precision Drilling & Tapping for Complex Sleeves

Many sleeve applications require more than just a turned OD/ID. We integrate secondary operations—including multi-axis drilling, radial tapping, and milling—directly into our production workflow. Whether you need set screw holes, grease ports, or complex hole patterns for mounting hardware, we hold the positional accuracy required for your assembly.

Radial Drilling

Precision placement for set screws or lubrication ports.

Threaded Holes

Tapping for standard and fine threads to accommodate fasteners.

Keyways & Slots

Broaching and milling for torque transmission.

Geometric Control

Maintaining perpendicularity and hole-to-bore alignment during secondary operations.

Manufacturing Capabilities

Our Dongguan facility is equipped for high-precision CNC turning and grinding, enabling us to meet the demanding requirements of rotating equipment.

Dimensional Range
OD Ø3 mm – Ø500 mm; Length up to 1500 mm.
Tolerance Control
CNC turning to ±0.01 mm; precision grinding to ±0.005 mm.
Geometric Accuracy
Concentricity, roundness, and cylindricity down to 0.005 mm–0.01 mm.
Surface Finish
Down to Ra 0.2 μm for seal-critical applications.

Materials We Process

We machine a wide range of industrial metals to match your specific environmental requirements, from high-corrosion resistance to high-wear durability.

Discuss Your Material
  • Stainless Steel 304, 316, 17-4PH, 15-5PH.
  • Carbon & Alloy Steel 1018, 1045, 4140, 4340.
  • Bearing & Tool Steel 52100, D2, A2.
  • Non-Ferrous Aluminum 6061/7075, Brass, Bronze, Copper alloys.
  • Specialty Alloys Inconel, Monel, Hastelloy.

Supporting OEM and MRO Workflows

We operate as a manufacturing partner for diverse industrial sectors. Our production lines are flexible enough to handle both initial engineering prototypes and volume production runs.

OEM Manufacturers

We provide consistent, repeatable quality for pumps, motors, and gearboxes. Our documentation includes material certificates and inspection reports to meet your quality standards.

MRO & Repair

If you are dealing with obsolete or worn parts, we can reverse-engineer sleeves from your physical samples or sketches to get your equipment back online.

Integrated Secondary Processes

Managing multiple suppliers adds lead time and risk to your supply chain. SleeveMFG coordinates the entire manufacturing process, including heat treatment, surface finishing, and precision finishing.

Heat Treatment

Quenching, tempering, nitriding, and induction hardening to improve surface hardness and wear resistance.

Surface Finishing

Hard chrome plating, electroless nickel, black oxide, PVD/DLC coatings, and passivation.

Precision Finishing

Honing and grinding to achieve final bore fits (H6/H7) and surface integrity.

Why Technical Buyers Choose SleeveMFG

We focus exclusively on rotational components. This specialization allows us to anticipate common manufacturing challenges such as thin-wall distortion, thermal expansion during machining, and the delicate balance between bore fits and concentricity.

By centralizing turning, drilling, tapping, and finishing, we ensure that your parts arrive ready for assembly.

How to Get a Quote

To receive an accurate quote, please provide your engineering files (PDF, STEP, STP, IGES, DXF, DWG) along with the following information:

  1. 1

    Material Grade

    Specify the required material or mechanical properties.

  2. 2

    Tolerances

    Clearly indicate critical dimensions, fits (e.g., h6, H7), and geometric callouts.

  3. 3

    Quantity

    Let us know if you require a prototype or a production batch.

  4. 4

    Surface Requirements

    Include heat treatment or coating specifications if applicable.

Send your requirements to info@sleevemfg.com and our engineering team will review your drawings for manufacturability.

Request Your Drilling & Tapping Quote

Share your drawings and specifications with our engineering team. We will review your files for manufacturability and respond with an accurate quote.

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