Würth Baer Supply CompanyWürth Baer Supply Company•Built For Those Who Build The World™
    (800) 289-2237
    Vernon Hills, IL
    (800) 289-2237
    Vernon Hills, IL
    Home
    Sign in / Register
    • Quick Order
    • Quotes
    • Promotions
    • Careers
    • Help
    • Contact
    Mobile app

    Why Shop With Us?

    • Lorry and clock graphic

      BUY "YOUR WAY"

      Order by 24/7 by web, contact our sales reps or call by phone.

    • Shopping bag with heart graphic

      One Stop Shop

      What you need, when you need it, all in one place.

    • Trolley graphic

      Next Day Delivery

      Most orders ship same day.

    • Supprt headphone graphic

      Expert Support Team

      Advice and support from knowledgeable professionals.

    Need help? Call(800) 289-2237

    Company Information

    • About Our Company
    • Who is Reinhold Würth?
    • Contact Us / Locations
    • Return Policy
    • Shipping Policy
    • Careers
    • Sales Tax and Exemption
    • Credit Application
    • ACH / e-Check Registration
    • Terms & Conditions
    • Privacy Notice
    • Accessibility Statement
    • Help
    • FAQ
    • Pay Invoices Online

    Shop With Us

    • Shop by Brand
    • Clearance
    • Daily Discounts
    • Catalogs
    • Vendor Literature
    • Download Our Mobile App

    Services

    • SAM.gov - CAGE Code: 1UXJ6
    • Architects & Designers Portal
    • ORSY - Inventory Management Solution
    • Machinery

    Contact

    • Toll-free (800) 289-2237
    • Website Support (800) 944-2237 x4444
    • Support via Text / SMS (800) 289-2237
    Compliance LogoThe logo of Viking CloudThe logo of FSCCARB 2 Compliant
    Vender Freight
    Routing
    • Our Blog (opens in a new tab)
    • LinkedIn (opens in a new tab)
    • Facebook (opens in a new tab)
    • Instagram (opens in a new tab)
    • YouTube (opens in a new tab)
    • TikTok (opens in a new tab)
    • Pinterest (opens in a new tab)
    • X (formerly Twitter) (opens in a new tab)
    Compliance LogoThe logo of Viking CloudThe logo of FSCCARB 2 Compliant
    Vender Freight
    Routing
    Approved US Government VendorCage Code: 1UXJ6

    Copyright © 2004-2026, Würth Baer Supply Company. All Rights Reserved.

    Terms & ConditionsPrivacy NoticeAccessibilityDo Not Sell My Personal InformationWürth ComplianceSite FeedbackSitemap
    0Cart
    0Cart
    Abrasive Sheets
    1. Home
    2. Abrasives
    3. Abrasive Sheets
    Item # DY93644 • Mfr # 93644

    Dynabrade DynaCut Triangular PSA Sanding Sheet 320 Grit Aluminum Oxide C-Weight Paper 6 Hole Bulk-50 93644

    Description

    Dynabrade DynaCut 320 Grit Triangular Sheet Use

    Dynabrade DynaCut 320 grit triangular sanding sheet is a PSA-backed abrasive designed for use on Dynafine Detail Sanders DY57900, so it pairs directly with that detail sanding workflow without extra adaptation. The triangular shape with 6 holes is configured for dust extraction on compatible Dynafine sanders, helping keep the cut cleaner as you work intricate corners and profiles. The 320 grit aluminum oxide abrasive on this sheet delivers a fine, controlled cut that is suited to intermediate or finish sanding steps. Because the abrasive is designed as sharp and free cutting, it removes material efficiently at this fine grit, which helps refine surfaces while limiting unnecessary passes.

    Key Sanding Sheet Details That Support Work

    • The abrasive is coated with premium P grade aluminum oxide that is sharp and free cutting, so it removes stock efficiently on each pass and helps maintain a consistent scratch pattern across a broad range of surfaces.
    • The sheet is designed for use on hard woods, soft woods, plastics, fiberglass, composites and fabricated metals, so one part number can stay on the sander through varied jobs in a mixed-material shop environment.
    • The C weight paper backing is durable yet moderately flexible, so it resists tearing on edges while still conforming reasonably to mild contours and profiles during detail sanding work.
    • The sheet is described as a good choice for sanding wood, metal, aluminum, composites, solid surface materials and primed or painted surfaces, so it can handle both base material leveling and surface preparation between coating steps.
    • A non contaminating, non-loading coating resists clogging when sanding soft materials and coatings, so spent dust clears more easily from the face and helps extend disc life between sheet changes.
    • The PSA backing bonds directly to the Dynafine detail sander pad, so sheet changes stay quick and secure during production or jobsite sanding sequences.

    Triangular PSA 6 Hole Sheet Fit And Setup

    The sheet format is identified as a triangle disc with PSA and 6 holes, so it is tailored for triangular hook pads on Dynafine Detail Sanders DY57900 that use a matching 6-hole dust pattern. The pressure sensitive adhesive backing lets the sheet press onto the sander pad without clamps, which speeds up sheet changes when moving between grits or replacing a worn sheet. Because the grit is 320, this sheet serves well where a fine, controlled cut is needed after coarser grits, helping refine the surface before final finishing steps. The triangular format reaches into corners, along edges and into tight areas that are difficult for round discs, so detail work on joinery, profiles or trim is supported by the shape.

    How This Dynabrade Sheet Works In Practice

    Where The 320 Grit Triangular Sheet Performs Best

    The Dynabrade DynaCut 320 grit triangular 6-hole PSA aluminum oxide sanding sheet is positioned for broad use on hard and soft woods, plastics, fiberglass, composites and fabricated metals, so one abrasive can support many stages of fabrication and finishing in the same workspace. Its role as a good choice for sanding wood, metal, aluminum, composites, solid surface materials and primed or painted surfaces means it can bridge from shaping base materials to preparing coated pieces between finish coats. When used on Dynafine Detail Sanders DY57900, the triangular shape and matching 6-hole pattern let the tool reach into corners and along narrow trim while still benefiting from dust extraction through the holes. On solid surface or primed and painted parts, the 320 grit cut refines earlier sanding marks and readies the surface for subsequent coating or polishing steps while staying within a fine-grit range.

    Why The Abrasive And Backing Details Matter

    The premium P grade aluminum oxide abrasive is described as sharp and free cutting, so it maintains an aggressive cutting action for a 320 grit while helping reduce the passes needed to reach a uniform finish across different materials. Because the C weight paper backing is both durable and moderately flexible, it holds up when working across edges or small radii yet still bends enough to follow light contours without excessive cracking, which supports consistent contact and scratch patterns. The non contaminating, non-loading coating resists clogging, so resinous woods, soft plastics or fresh coatings shed from the abrasive face more readily, allowing the sheet to keep cutting instead of glazing over. In real use this extended disc life reduces sheet changes and keeps the Dynafine detail sander working longer between changeovers on repetitive production runs or extended refinishing tasks.

    Common Questions About This Dynabrade Sanding Sheet

    What type of abrasive is on this Dynabrade DynaCut sheet?

    The sheet uses premium P grade aluminum oxide, which provides a sharp, free-cutting action that helps remove material efficiently while maintaining a consistent fine 320 grit finish.

    Which sander is this triangular PSA 6 hole sheet used with?

    This sanding sheet is used with Dynafine Detail Sanders DY57900, so its triangular shape and 6-hole pattern match that tool's pad and dust extraction layout.

    What materials can be sanded with this 320 grit sheet?

    The sheet is designed for hard and soft woods, plastics, fiberglass, composites, fabricated metals, aluminum, solid surface materials and primed or painted surfaces, supporting varied shop and jobsite tasks.

    Why is a C weight paper backing useful on this sheet?

    The C weight paper backing is durable yet moderately flexible, so it resists tearing at edges while still conforming to light contours during detail or profile sanding.

    How does the non loading coating affect sanding performance?

    The non-loading, non contaminating coating helps resist clogging when sanding soft materials and coatings, so the sheet keeps cutting effectively and disc life is increased.

    What sanding stage suits the 320 grit rating on this sheet?

    The 320 grit rating fits intermediate to finish sanding, refining surfaces after coarser grits and preparing wood, metal or coated parts for further finishing steps.

    Selecting This Sheet For Detail Sanding Tasks

    The Dynabrade DynaCut 320 grit triangular 6-hole PSA aluminum oxide sanding sheet ties directly to Dynafine Detail Sanders DY57900, so it fits established detail-sanding workflows. Its premium P grade aluminum oxide abrasive, C weight paper backing and non-loading coating all support efficient cutting and extended disc life across wood, metal, composites and coated surfaces. For detail work that moves from bare material to primed or painted parts, this single 320 grit triangular sheet provides a consistent, fine cut that helps maintain surface quality from one step to the next.

    Attachment Type
    PSA
    Grit
    320
    Hole Pattern
    6-hole
    Vacuum Type
    Vacuum
    Mineral
    Aluminum oxide
    Color/Finish
    Gold
    Backing Weight
    C-weight paper
    Product Type
    Sanding Sheets
    Shape
    Triangular
    Manufacturer Series
    Dynacut
    Supplier Pack Size
    50
    Sold In
    50
    Attachment Type
    PSA
    Grit
    320
    Hole Pattern
    6-hole
    Vacuum Type
    Vacuum
    Mineral
    Aluminum oxide
    Color/Finish
    Gold
    Backing Weight
    C-weight paper
    Product Type
    Sanding Sheets
    Shape
    Triangular
    Manufacturer Series
    Dynacut
    Supplier Pack Size
    50
    Sold In
    50
    80120180220320
    Dynabrade
    $61.50/50 Each
    $1.23 /Each
    Dynabrade DynaCut Triangular PSA Sanding Sheet 320 Grit Aluminum Oxide C-Weight Paper 6 Hole Bulk-50 93644
    Item# DY93644 / MFR Part # 93644
    Each

    Associated Items

    Each
    Backorder

    Sold In: 50 Each

    Each
    Quantity
    Unit Price
    Catalog
    Sold in: 1 Each
    DY57900
    Mfr# 57900
    Dynabrade Dynafine Kit Detail Air Kit Sander Rotary vane Motor with Triangle Hook and Loop Pad, Non-Vacuum, - 57900