English
Drill Polishing Point Jewelry Buffing Wool Felt Bob Featured Image
  • Drill Polishing Point Jewelry Buffing Wool Felt Bob
  • Drill Polishing Point Jewelry Buffing Wool Felt Bob
  • Drill Polishing Point Jewelry Buffing Wool Felt Bob
  • Drill Polishing Point Jewelry Buffing Wool Felt Bob
  • Drill Polishing Point Jewelry Buffing Wool Felt Bob
  • Drill Polishing Point Jewelry Buffing Wool Felt Bob

Drill Polishing Point Jewelry Buffing Wool Felt Bob

Short Description:

  1. Ultra-Gentle Mirror Buffing: 100% pure soft white wool felt buffs gold, platinum, silver, and stainless steel to a brilliant mirror shine without micro-scratches or edge distortion.
  2. Multi-Profile Shaping for Fine Details: Includes ball, disc, and pointed bullet points to effortlessly contour around ring prongs, watch bezels, crown edges, and delicate gemstone settings.
  3. Universal Rotary Tool Shank: Precision steel handle fits rotary handpieces, flexible shaft grinders, micro drills, and Dremel tools with smooth, true rotation.
  4. Broad Delicate Material Compatibility: Exceptional polishing performance on precious metals, luxury watch cases, crystal glass, jadeite, ceramics, and acrylic crafts.
  5. Long-Lasting & Compound Retentive: Dense felt texture absorbs and holds polishing rouge/diamond paste effectively, reducing splatter and maximizing compound efficiency.

 


Product Detail

Contact US

INDUSTRIAL GRADE • PRECISION FINISHING • OEM/ODM FACTORY

Industrial Wool Felt Polishing Bobs & Mounted Points

Engineered from 100% pure Australian virgin wool fiber and dynamically balanced on reinforced nickel-plated steel shanks (concentric runout ≤ 0.03 mm). Delivering chatter-free, high-gloss mirror buffing (Ra < 0.05 μm) across injection molds, jewelry, aerospace components, watchmaking, and precision carbide tooling.


✔ Standard Density: 0.45–0.50 g/cm³ (Custom 0.35–0.65 g/cm³)


✔ Shanks: 2.35mm / 3.0mm / 6.0mm / 1/8″ / 1/4″


✔ Operating Speeds: Up to 35,000 RPM


✔ ISO9001 • REACH • RoHS Certified


ENGINEERED FOR SUPREME FINISHING

Why Global Industrial Polishers Trust Rolking Felt Bobs

Eliminate vibration, compound waste, and workpiece scratching with tightly compressed natural wool felt mounted points.

✦

100% Virgin Wool Fiber

Made from premium selected natural wool. Naturally interlocking scales hold diamond paste and polishing rouge tenaciously without shedding or smearing.
◆

Zero Vibration Runout

Solid reinforced steel mandrels with strict concentric tolerance (≤ 0.03 mm). Enables smooth, chatter-free operation on high-speed pneumatic and electric rotary tools.
★

Rapid Heat Dissipation

Naturally breathable porous wool fiber structure rapidly disperses frictional heat during high-speed buffing, preventing workpiece discoloration and thermal micro-cracking.
✔

Non-Scratch Finishing

Zero synthetic abrasives or fillers inside the wool matrix. Delivers pristine scratch-free mirror finishes (Ra < 0.05 μm) across metals, acrylics, and optical glass.

Wool Felt Polishing Bobs Specifications and Shapes

Precision Shapes & Multi-Material Compatibility

Ball, Bullet, Cylinder, Disc, and Cone profiles engineered for stainless steel, aluminum, copper, precious metals, and hard plastics.

 100% White Wool Felt Premium Polishing Bobs Features

100% White Wool Felt • Mirror Finish & Zero Shedding

Ultra-dense wool fiber ensures lint-free operation, fast heat dissipation, and scratch-free surface perfection on critical workpieces.


CUSTOMIZED FOR COMPLEX GEOMETRIES

Felt Bob Shape Geometries & Engineering Applications

Select the optimal mounted point profile based on your workpiece curvature, cavity depth, and deburring requirements.

1. Cylindrical Bobs (Flat Top)
Standard / High Demand

Best For: Flat internal surfaces, wide cylinder bores, edge chamfering, watch bezels, and ring exterior polishing.

Sizes: Ø 4mm – 30mm | Length: 8mm – 35mm
2. Conical / Pointed Bobs
Deep Crevices

Best For: Sharp internal angles, V-grooves, mold parting lines, tight corners, and intricate carving details.

Sizes: Ø 6mm – 25mm | Length: 10mm – 35mm
3. Bullet / Ball Nose Bobs
Versatile Radius

Best For: Curved channels, concave radii, jewelry ring shanks, and injection mold cavity transitions.

Sizes: Ø 4mm – 20mm | Length: 10mm – 25mm
4. Spherical / Ball Bobs
Concave Precision

Best For: Hemispherical cavities, bearing races, dimple texturing, dental implants, and inside bracelet polishing.

Sizes: Ø 6mm – 25mm Spherical Diameter
5. Disc / Wheel Mounted Points
Narrow Slots

Best For: Slit buffing, narrow groove finishing, keyways, edge deburring, and flat perimeter polishing.

Sizes: Ø 10mm – 50mm | Thickness: 4mm – 10mm
6. Custom Kits & Large Sticks
Retail / Toolroom

Best For: Extended long sticks (e.g. Ø20x113mm), 12-100 pcs multi-shape rotary tool sets, custom OEM retail packaging.

Packaging: Blister cards, plastic boxes, bulk bags


PROVEN IN PRECISION WORKSHOPS GLOBALLY

Multi-Industry High-Precision Application Scenarios

From micro-jewelry ring interiors to heavy automotive manifolds and CNC plastic injection mold cavities.

Wool Felt Polishing Bobs Inside Ring Jewelry Polishing

Jewelry & Luxury Watch Finishing

Platinum / Gold / Silver

Bullet, cone, and mini-cylinder felt bobs effortlessly buff inner ring shanks, bracelet bezels, watch cases, and gemstone prongs without dragging or uneven edge rounding.

 Watch Case Precision Mirror Polishing with Felt Mounted Point

Precision Watchmaking & Horology

Stainless / Titanium

Fine-grain virgin wool points charged with diamond suspension create distortion-free mirror chamfers (Zaratsu level) on luxury watch cases, casebacks, and crowns.
Injection Mold Cavity Finishing with Wool Felt Bob

Injection Mold & Tooling Die Polish

P20 / NAK80 / S136

Mounted on high-speed pneumatic die grinders (up to 30,000 RPM), spherical and ball-nose bobs polish deep cavities, ribs, and ejector pin holes to SPI A1 optical clarity.

 Automotive Manifold Mirror Buffing with Wool Felt Mounted Wheel

Automotive & Aerospace Components

Billet Aluminum / Chrome

Large cylinder and wheel felt bobs remove minor machining marks, orange peel, and oxidation on intake manifolds, turbo housings, and aircraft turbine components.

Cone Wool Felt Bob Mounted Point for Precision Deburring

Precision Deburring & Edges

Cone-shaped felt points eliminate microscopic metal burrs and surface irregularities on CNC-machined parts without modifying part tolerances.

 Rotary Tool & Lathe Mounted Point Wool Felt Bob

Lathe & CNC Spindle Mounted

Rigid carbon steel shanks fit micro-lathes, CNC spindles, Dremel, Foredom, and handheld pneumatic die grinders securely without slippage.

 Wool Felt Polishing Stick for Jewelry and Mold Finishing

Long Polishing Sticks & Pins

Extended diameter (Ø20x113mm) felt sticks ideal for deep internal ring polishing, bangles, jadeite, agate, and cylindrical glass cavities.


FACTORY OEM / ODM STANDARDS

Technical Specifications & Manufacturing Capabilities

All dimensions, wool densities, and shank diameters are fully customizable for global distributors and industrial tool brands.

Parameter Standard Specification OEM / Custom Capability
Raw Material 100% Pure Australian Virgin Wool (Grade A+) Custom blends / Fine merino wool available
Wool Felt Density 0.45 – 0.50 g/cm³ (Standard Medium-Hard) Soft (0.35 g/cm³) to Rock Hard (0.65 g/cm³)
Head Shapes Available Cylinder, Cone, Bullet/Tree, Ball, Flame, Wheel/Disc Custom CNC-ground geometry according to CAD/Drawings
Head Diameter Range Ø 4mm, 6mm, 8mm, 10mm, 12mm, 15mm, 20mm, 25mm Micro bobs (Ø 2mm) up to large wheels (Ø 50mm)
Shank / Mandrel Material High-tensile Carbon Steel (Nickel / Chrome Plated) Stainless Steel 304/316 shanks on request
Shank Diameters 3.0 mm (1/8″) and 6.0 mm (1/4″) Standard 2.35 mm (3/32″ for jewelry), 1/8″, 1/4″, 6.35 mm
Concentric Runout Tolerance ≤ 0.03 mm (Dynamic Balance Verified) Precision grade ≤ 0.02 mm for ultra-high speed tools
Recommended Max Speed 15,000 – 35,000 RPM (Depending on head size) Custom high-speed bond strength testing
Achievable Surface Finish Ra < 0.05 μm (Mirror / Optical Quality) Compatible with Diamond Paste #14,000 – #100,000 grit
Packaging Options 10 pcs/polybag, 50 pcs/box, 100 pcs/carton Custom Barcoded Retail Blister Kits / Wooden Boxes

Professional Operating Guidelines: Speeds & Polishing Compounds

1. Diamond Lapping Compound

Apply oil or water-soluble diamond paste (0.5 to 15 micron) to wool bobs for mold steels (H13, S136, NAK80), carbide, and sapphire crystals.

Recommended Speed: 12,000 – 22,000 RPM
2. Jeweler’s Rouge & Tripoli

Charge felt bobs with red rouge or green chromium oxide for ultra-high gloss buffing on yellow/white gold, 925 silver, platinum, brass, and copper.

Recommended Speed: 8,000 – 16,000 RPM
3. Cerium Oxide & Aluminum Oxide

Ideal for scratch removal and optical polishing on watch crystals, mineral glass, jade, quartz, resin composites, and dental ceramics.

Recommended Speed: 10,000 – 18,000 RPM


FREQUENTLY ASKED QUESTIONS

Frequently Asked Questions: Wool Felt Polishing Bobs & Mounted Points

Key technical details regarding density selection, shank dimensions, RPM limits, compound loading, and custom manufacturing.

1. What wool density should I choose for my polishing application?
▼
Our standard wool felt bob density is 0.45 – 0.50 g/cm³ (Medium-Hard), which delivers the ideal balance between dimensional shape retention under pressure and flexible conformability across contours. For aggressive stock removal, heavy mold lapping, and flat edge chamfering, we offer Hard / Rock Hard densities (0.55 – 0.65 g/cm³). For delicate high-karat gold jewelry, soft acrylics, and mirror finishing on intricate filigree, we manufacture Soft densities (0.35 – 0.40 g/cm³).

2. What mandrel / shank sizes are available, and do they fit Dremel and Foredom tools?
▼
Yes. We produce wool felt mounted points with standard shank diameters including 3.0 mm (1/8 inch), 6.0 mm (1/4 inch), and 2.35 mm (3/32 inch for jewelry micromotors). Our shanks are manufactured from high-tensile, nickel-plated carbon steel with precision ground concentricity (tolerance ≤ 0.03 mm), ensuring 100% vibration-free compatibility with Dremel rotary tools, Foredom flex shafts, NSK micromotors, air die grinders, and CNC spindle chucks.

3. How do Rolking wool felt bobs maintain high concentricity without vibration at high speeds?
▼
Every mounted point is anchored using our proprietary high-shear epoxy bonding process and precision CNC-dressed after mounting to guarantee dynamic balance. With runout verified at ≤ 0.03 mm, our felt bobs eliminate chatter marks and operator hand fatigue even at speeds up to 35,000 RPM, prolonging rotary tool spindle bearing life and ensuring consistent micro-inch finishes.

4. What compounds should be paired with wool felt bobs for mirror polishing (Ra < 0.05 μm)?
▼
Natural wool fibers feature microscopic surface cuticles (scales) that retain polishing pastes exceptionally well. For hardened mold steels and titanium, pair with diamond compounds (3μm down to 0.5μm). For gold, silver, brass, and copper, use Jeweler’s Rouge or fine Tripoli. For stainless steel and aluminum, use green chromium oxide buffing bars. The wool matrix absorbs and distributes compounds evenly without flinging or dry burning.

5. Do you support custom shapes, private label packaging, and wholesale sample orders?
▼
Yes. As an ISO9001 certified direct manufacturer, Rolking Felt provides full OEM/ODM services. We can custom-grind unique head contours according to your CAD drawings, laser-engrave logos on steel mandrels, and provide customized retail packaging (such as 10-piece, 24-piece, or 100-piece assorted plastic organizer boxes, printed blister cards, and master cartons with custom EAN/UPC barcodes). Standard factory sample kits can be dispatched within 2–3 business days.

Partner with China’s Leading Industrial Wool Felt Manufacturer

Get direct factory-grade precision wool felt polishing bobs, custom geometries, private label retail sets, and reliable global supply chain delivery.

  • Previous:
  • Next:
    • Write your message here and send it to us

    Products categories

    Hit enter to search or ESC to close
    WhatsApp Online Chat !