Standard Abrasives™ Unitized Block 808634, 632 1 in Thick, 5 ea/Case

The 15? x 15? blocks of material in our Standard Abrasives™ Unitized Block - 600 Series have a soft to medium density, making them a good match for medium-pressure cleaning and blending. The blocks are also effective for removing small burrs and radiusing edges, and can be customized into various shapes for a range of uses.
Special Price $297.83 Regular Price $350.39
UPC 00051115353659
3M ID 7010366943
Packaging Case
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Cut to Custom Size or Shape for Hand Sanding or Tool Attachment

Standard Abrasives™ Unitized Block - 600 Series comes in varying thicknesses that can be cut to size for hand finishing or refining. It is also ideal for specialty uses, when working with an intricate or unique workpiece that requires an unusual shape to achieve the desired result. After cutting and dressing the material into a customized shape, such as a mounted point or other abrasive specialty, attach it to a tool using a unitized wheel mandrel (sold separately).

For your applications requiring a standard wheel shape, choose from the Standard Abrasives™ line of Series 600 Unitized Wheels, offered with a center hole or quick change attachment (sold separately).

Soft to Medium Density Material Offers Multi-Purpose Utility

The Standard Abrasives™ 600 Series Unitized Block has a soft to medium density when compared to the rest of the Standard Abrasives™ Unitized Block line, and is designed with increased durability over the 500 Series wheels. Constructed with fine grade mineral, this double-duty abrasive combines durability with a fine scratch pattern, making it a great choice for projects that require an aggressive cut yet soft finish – namely, tough blending and polishing applications.

Use the Standard Abrasives™ Unitized Block - 600 Series in aluminum oxide for blending and refining surfaces of jet blade airfoil, blending parting lines from cast turbine blades and vanes, blending stainless steel surgical instruments, mill marks and machine mismatches and removing minor pits, scratches, resins/adhesive overspray, coating and plastic mold flashing.

When it comes to polishing, trust a Standard Abrasives™ 600 Series Unitized Block with silicon carbide for polishing fillet areas on jet blades and aircraft parts, polishing after weld removal and polishing mold and die, cast aluminum, brass and copper. It's also a good match for finishing of surgical instruments and prosthetics.

Due to its conformability, this material is great for projects with strict tolerances, because it responds to surface irregularities without gouging or undercutting the part.

Non-Woven Unitized Construction Offers a Step Up in Density and Durability for Stubborn Surfaces

Standard Abrasives™ Unitized Blocks come in a range of densities and grades to suit different metals, the degree of aggressiveness required and desired finish. Although used for some of the same tasks as Standard Abrasives™ Buff and Blend products, unitized products are designed with a far stronger and denser construction to support more aggressive applications and accomplish material removal more rapidly, making them a great match for tough deburring, cleaning, blending and finishing applications. Even though unitized construction results in a much stiffer product, the non-woven nylon fibers of the block maintain the advantage of responding to surface irregularities while preserving the geometry of the piece, and produce a consistent finish.

Unitized blocks are created by stacking layers of open web material that combines non-woven fiber strands and abrasive mineral with a tough resin bond. These layers are then cured and compressed together with heat. By fusing layers of open web, the abrasive gains more toughness and durability, so it can withstand repeated wear.

Ultimately, the material's durability is what makes it such a good match for edges. The material is tough enough to perform high-pressure edgework without tearing or otherwise disintegrating. Regardless of the thickness of the block, it maintains its structural integrity to remain a stiff and long-lasting abrasive even under high pressure. Additionally, as the layers wear, the material can be dressed to refresh its shape.

Load-Resistant Construction Boosts Life and Performance

Standard Abrasives™ Unitized Blocks are load-resistant to keep you cutting with fresh mineral. The gaps in the open web allow unwanted swarf to escape. Consequently, less debris clogs the abrasive, so the mineral can stay fresh, keep cutting sharp and deliver a consistent cut over the life of the product. As the fibers break down and fresh mineral is exposed, it reduces the likelihood of dull or blunt mineral smearing the surface, contributing to cleaner surfaces and less re-work. Furthermore, manual fatigue that may result from applying heavy pressure to a dull abrasive is reduced.

The Many Benefits of Standard Abrasives™ Non-Woven Products

Standard Abrasives™ Unitized products offer many benefits for heavy-duty jobs. For all the aforementioned reasons, Standard Abrasives™ Unitized products invigorate deburring, cleaning, blending and finishing applications by helping operators reduce finishing steps, minimize costs and achieve greater throughput.


  • 15? x 15? block in a range of thicknesses can be converted to a custom size or shape and used for hand sanding or mounted to a tool
  • Soft/Medium density material blends surfaces to a nice finish
  • Increased edge durability over the 500 Series offers better cut and adds life for light deburring and blending applications
  • Open web is load resistant, contributing to longer abrasive service life
  • Open web features nylon strands that will not melt or smear when heated, reducing potential for unwanted marks and blemishes
  • Suitable for ferrous and non-ferrous metals, available with aluminum oxide for better cut or silicon carbide for finishing exotic metals or composites
More Information
3M ID 7010366943
Part number 808634
Keywords 3M, Standard Abrasives, Unitized Block, 600 Series, Abrasive material, Soft density, Medium density, Medium-pressure cleaning, Blending, Removing small burrs, Radiusing edges, Custom size, Custom shape, Hand sanding, Tool attachment, Edge durability, Light deburring, Surface blending, Abrasive service life, Load resistant, Nylon strands, Non-ferrous metals, Aluminum oxide, Silicon carbide, Ferrous metals, Finishing exotic metals, Polishing, Specialty abrasive, Mounted point, Tool mandrel, Jet blade airfoil, Cast turbine blades, Surgical instruments, Machine mismatches, Surface irregularities, High-pressure edgework, Consistent finish, Non-woven construction, Heavy-duty applications, Manufacturing market, Metalworking market
Global Product Hierarchy Abrasives > Handheld Abrasives > Blocks > Unitized Blocks
Abrasive Material Silicon Carbide
Backing Material Non-woven
Product Series 600
Product Type simple
Quantity 0
Trademark 1 Standard Abrasives™
Country of Origin United States
SAP Shelf Life In Days 3650
Base - Billing Unit EA
Base - Metric Gross Weight 1.86 KG
Base - Metric Height Dimension 2.54 CM
Base - Metric Length Dimension 38.1 CM
Base - Metric Width Dimension 38.1 CM
Base - Item Quantity 1
Base - Unit EA
Unit of Use - Billing Unit EA
Unit of Use - Customary Cubic Dimension 224.99997559050237 ci
Unit of Use - Customary Gross Weight 4.100598076638723 lbs
Unit of Use - Customary Net Weight 4.100598076638723 lbs
Unit of Use - Customary Height Dimension 1.0 in
Unit of Use - Customary Length Dimension 15.0 in
Unit of Use - Customary Width Dimension 15.0 in
Unit of Use - Metric Cubic Dimension 3687.089 CCM
Unit of Use - Metric Net Weight 1.86 KG
Unit of Use - Metric Height Dimension 2.54 CM
Unit of Use - Metric Length Dimension 38.1 CM
Unit of Use - Metric Width Dimension 38.1 CM
Unit of Use - Item Quantity 1
Unit of Use - Total Unit Quantity 1
Unit of Use - Previous Packaging Level Quantity 1
Unit of Use - Item Unit EACH
Unit of Use - Unit EA
Shipper - Billing Unit EA
Shipper - Customary Cubic Dimension 2366.848021097617 ci
Shipper - Customary Gross Weight 21.812536220571786 lbs
Shipper - Customary Net Weight 20.502990383193616 lbs
Shipper - Customary Height Dimension 8.8 in
Shipper - Customary Length Dimension 16.4 in
Shipper - Customary Width Dimension 16.4 in
Shipper - Metric Cubic Dimension 38785.69 CCM
Shipper - Metric Weight 9.894 KG
Shipper - Metric Net Weight 9.3 KG
Shipper - Metric Height Dimension 22.352 CM
Shipper - Metric Length Dimension 41.656 CM
Shipper - Metric Width Dimension 41.656 CM
Shipper - Item Quantity 5
Shipper - Total Unit Quantity 5
Shipper - Previous Packaging Level Quantity 5
Shipper - Previous Packaging Level Unit EACH
Shipper - Item Unit EACH
Shipper - Unit CS
Pallet - Billing Unit EA
Pallet - Customary Cubic Dimension 116282.72154182104 ci
Pallet - Customary Gross Weight 820.9992597538622 lbs
Pallet - Customary Net Weight 738.1076537949701 lbs
Pallet - Customary Height Dimension 57.67992125984252 in
Pallet - Customary Length Dimension 48.0 in
Pallet - Customary Width Dimension 42.0 in
Pallet - Metric Cubic Dimension 1905532.4 CCM
Pallet - Metric Net Weight 334.8 KG
Pallet - Metric Height Dimension 146.507 CM
Pallet - Metric Length Dimension 121.92 CM
Pallet - Metric Width Dimension 106.68 CM
Pallet - Item Quantity 180
Pallet - Total Unit Quantity 180
Pallet - Previous Packaging Level Quantity 36
Pallet - Previous Packaging Level Unit BOX
Pallet - Item Unit EACH
Pallet - Unit PAL
Pallet - Pallet Layer Quantity 6
Pallet - Shipping Container Per Layer Quantity 6
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