01 — Essential Specifications
Choose with confidence
Essential specifications
The facts that matter most when choosing the right product in this family.
02 -- Materials, Applications & Machines
Working compatibility
Materials, applications & machines
Quickly confirm what the tool can cut, the work it is designed to perform, and the equipment it is intended to run on.
Compatible materials
Recommended workpiece materials
- Ferrous Metals
- Non-Ferrous Metals
- Plastic
- Wood
Recommended applications
Typical jobs and operations
- Grinding
- Stock Removal
- Weld Blending
- Surface Preparation
- Finishing
Compatible machines
Equipment and operating methods
- Angle Grinder
03 -- Complete Technical Specifications
Technical data
Complete technical specifications
Open only the groups you need to confirm construction, dimensions, and operating requirements.
Abrasive specifications
Disc / wheel diameter4-1/2"
Diameter — inches4.5″
Grit60
Abrasive grainPremium Aluminum Oxide
Disc profileType 29
Disc configurationRegular
Backing materialPolyester
Supplier box quantity10
Construction & identification
Tool typeFlap Discs
Tool subtypeSpecialty Flap Discs
Detailed styleType 29 Regular conical profile
Manufacturer seriesA3 Specialty Flap Discs
Manufacturer part number39434
Dimensions & fit
Size4-1/2" x 5/8"-11 threaded hub
Arbor / mount size5/8"-11 threaded hub
Pack quantity10
Machine & operation
Maximum speed13300 RPM
04 -- Why Choose this series
Series advantage
Why choose the A3 Specialty Flap Discs series
A3 Specialty Flap Discs
Premium aluminum oxide grain on a polyester backing provides versatile grinding on ferrous and non-ferrous metals, plastics and wood. The conical profile supports controlled stock removal, blending and finishing.
05 -- Compatibility & What's Included
Compatibility & contents
Confirm the fit before ordering
The systems, models, and components below come directly from the product’s normalized fit data.
Fit details
Arbor / mount5/8"-11 threaded hub
06 -- Use Notes & Technical Description
Before you use it
Use notes & technical description
Important fit, operating, and care guidance to review before putting the tool to work.
Sold in full-pack multiples of 10 discs. Price is per disc. Match the diameter and mounting to the grinder and follow the manufacturer’s maximum RPM.
View the complete technical description
A3 Specialty Flap Disc for Multi-Material Grinding
CGW 39434 is a 4-1/2" Type 29 Regular flap disc with 60 grit premium aluminum oxide grain and a 5/8"-11 threaded hub mounting.
Premium aluminum oxide grain on a polyester backing provides versatile grinding on ferrous and non-ferrous metals, plastics and wood. The conical profile supports controlled stock removal, blending and finishing.
| Manufacturer part number | 39434 |
|---|---|
| Diameter | 4-1/2" |
| Grit | 60 |
| Abrasive grain | Premium Aluminum Oxide |
| Backing | Polyester |
| Disc type | Type 29 |
| Construction | Regular |
| Mount | 5/8"-11 threaded hub |
| Maximum speed | 13,300 RPM |
| Country of origin | USA |
| Pack quantity | 10 |
Sold in multiples of 10 discs. The displayed price is per disc. Order 10, 20, 30 or another full-pack multiple.
Use a compatible angle grinder and follow the manufacturer’s instructions. The grinder operating speed must not exceed the disc’s maximum RPM.
How ordering works
A clear process from order to delivery
Whether you need one replacement tool or a recurring supply order, every step is designed for clear communication, accurate fulfillment and dependable delivery.
1
Order submitted securely
Your products, quantities and order details enter our system for verification.
Secure submission
2
Confirmation sent
You receive a clear summary of the items and quantities, ready to review or share.
Details confirmed
3
Picking and packing
Our team prepares the correct products and quantities for safe, accurate transportation.
Carefully prepared
4
Tracking provided
As soon as the carrier label is created, the tracking information is sent to you.
Trackable shipment
5
Delivery to your location
Your order travels to the selected address with clear visibility into its progress.
Dependable delivery
Business purchasing
Built for the way businesses buy
For distributors, wholesalers, machine shops and contractors: apply for Net 30 terms, email a PDF purchase order or request tailored business pricing.
Canada & United States
Purchasing in CAD
Net 30 terms available after credit approval
PDF purchase orders accepted directly by email
Targeted pricing based on products, quantities and repeat needs
Credit decisions are usually completed in 2–3 business days. No minimum order is required to apply.