Standard Abrasives™ Type 27 Unitized Wheel, 811821, 821, Type 27, 4-1/2 in x 1/2 in x 7/8 in, Nylon, 5/Carton, 50 ea/Case

The Standard Abrasives Type 27 Unitized Wheel - 800 Series is a highly aggressive wheel that is designed to remove challenging burrs with precision and impart a fine polish. With its hard density, this wheel is able to withstand high-pressure applications and cut aggressively. It is the perfect choice for deburring stainless steel pipe thread, wire edges from surgical instruments, stainless steel sinks, tanks, and other equipment for the food service industry. Additionally, it is ideal for deburring gears and aircraft wing spars, as well as breaking edges on aluminum extrusions. When it comes to polishing, the 800 Series Wheel is trusted to effectively polish stainless steel rule dies, welds on stainless steel sinks, machined surfaces, hand tools, and round tubing.

The Standard Abrasives 800 Series includes three Type 27 Wheels:

A 4-1/2 Type 27 Wheel, also known as a Type 27 Disc, is specifically designed to fit a right angle grinder with a wheel guard. These wheels are typically used for fiber discs, flap discs, and grinding wheels. Type 27 Wheels have a depressed center, allowing grinding at any angle without damaging the surrounding surface with the attachment nut. They are particularly useful for working on internal angles. These unitized wheels can be used in conjunction with, and sometimes in place of, a coated abrasive resin fiber disc or flap disc. Standard center hole and quick change unitized wheels are also available in a range of sizes.

Standard Abrasives Unitized Wheels are the perfect choice for tough deburring, cleaning, blending, and finishing applications. They come in a variety of densities and grades to suit different metals, the required level of aggressiveness, the shape of the part, and the desired finish. These unitized wheels are designed with a strong and dense construction to support more aggressive applications and accomplish material removal more rapidly. Despite their stiffness, the non-woven nylon fibers of the wheel allow it to respond to surface irregularities while maintaining the geometry of the piece and producing a consistent finish.

Unitized wheels are created by layering open web material that combines non-woven fiber strands and abrasive mineral with a tough resin bond. These layers of web are then cured and compressed together, resulting in a wheel that is tough and durable. This durability allows the wheel to withstand high-pressure edgework without tearing or disintegrating. Regardless of the diameter or thickness of the wheel, it maintains its structural integrity and remains a stiff and long-lasting abrasive even under high pressure. Additionally, as the layers wear, the wheel can be dressed to maintain its shape.

Standard Abrasives Unitized Wheels are load-resistant, meaning they are able to keep cutting with fresh mineral. The gaps in the open web structure allow unwanted swarf to escape, reducing debris that clogs the abrasive. This allows the mineral to stay fresh, sharp, and deliver a consistent cut over the life of the product. As the fibers break down and fresh mineral is exposed, the likelihood of dull or blunt mineral smearing the surface is reduced, resulting in cleaner surfaces and less re-work. Additionally, the load-resistance of these wheels reduces manual fatigue that may result from applying heavy pressure to a dull abrasive.

Standard Abrasives Unitized Wheels offer numerous benefits for heavy-duty jobs. They invigorate deburring, cleaning, blending, and finishing applications by helping operators reduce finishing steps, minimize costs, and achieve greater throughput. With their strong and dense construction, these unitized wheels are able to tackle tough applications and accomplish material removal more rapidly. The non-woven nylon fibers of the wheel allow it to respond to surface irregularities while maintaining the geometry of the piece, resulting in a consistent finish. Additionally, the load-resistance of these wheels keeps the mineral fresh, reducing the likelihood of dull or blunt mineral smearing the surface and contributing to cleaner surfaces and less re-work. Overall, Standard Abrasives Unitized Wheels are a reliable choice for a wide range of applications.