100-piece 4-1/2" T27 High Density Zirconia Flap Disc Bundle + Free Angle Grinder

Product Specification Shipping Refund Product Specification 100-PIECE 4-1/2" T27 HIGH DENSITY ZIRCONIA FLAP DISC BUNDLE + FREE ANGLE GRINDER Holiday Bundle — Get the $83.99 Benchmark Abrasives 4-1/2" Angle Grinder FREE Stock the shop with 100 of our premium 4-1/2" x 7/8" T27 high density zirconia flap discs and get the Benchmark Abrasives 4-1/2" corded angle grinder to run them FREE. This limited holiday bundle includes four essential grits for everything from aggressive stock removal and weld grinding to blending and finer surface finishing — all at the same price as the 100 flap discs alone. The bundle includes 30 discs each in 40, 60, and 80 grit, plus 10 discs in 120 grit, giving you a practical assortment for multiple stages of grinding and finishing. These High Density flap discs are manufactured with premium European zirconia abrasive cloth and contain approximately 40% more abrasive material than our regular-density flap discs. The thicker Jumbo construction provides increased usable abrasive while the layered flap design continually exposes fresh zirconia grain as the disc wears. The included Benchmark Abrasives 4-1/2" Corded Angle Grinder delivers 11,000 RPM from a powerful 7-amp motor, giving you a complete grinding system ready for fabrication, weld cleanup, blending, shaping, and finishing right out of the box. Holiday Bundle Price: $251.90 Combined Individual Value: $335.89 You Save: $83.99 — The 4-1/2" Angle Grinder Is FREE Bundle Contents 100 Total High Density Zirconia Flap Discs: 30 × 40 Grit — Aggressive grinding and heavy stock removal 30 × 60 Grit — General-purpose grinding and weld blending 30 × 80 Grit — Blending and surface refinement 10 × 120 Grit — Fine blending and finishing PLUS: 1 × Benchmark Abrasives 4-1/2" Corded Angle Grinder — FREE Flap Disc Specifications Specification Details Quantity 100 Flap Discs Diameter 4-1/2" Arbor 7/8" Shape T27 Flat Face Construction High Density / Jumbo Thickness 1/2" Abrasive Grain Zirconia Grits Included 40, 60, 80 & 120 Grit Quantities 30 × 40, 30 × 60, 30 × 80, 10 × 120 Backing X-Weight Polycotton Cloth Maximum RPM 13,300 RPM Use Dry Use Only 4-1/2" Angle Grinder Specifications Specification Details Tool Benchmark Abrasives 4-1/2" Corded Angle Grinder Tool Part Number BMT-AGBC4570_1 Power Corded Electric Voltage 120V Frequency 60Hz Motor 7 Amp Maximum Speed 11,000 RPM Wheel Diameter 4-1/2" Spindle Thread 5/8"-11 Power Cord 6.5 ft Included Accessories Spanner Wrench & Replacement Brushes Features High Density Zirconia Flap Discs 100 premium High Density / Jumbo flap discs Four-grit assortment for aggressive grinding through fine blending 30 discs each in 40, 60, and 80 grit 10 discs in 120 grit Premium European zirconia abrasive cloth Approximately 40% more abrasive material than our regular-density flap discs Self-sharpening zirconia grain continually exposes fresh cutting edges High Density construction provides increased usable abrasive Layered flap design wears gradually while exposing fresh abrasive X-weight polycotton backing provides strength and flexibility 13,300 RPM maximum operating speed T27 flat-face design for excellent control on contoured and non-flat surfaces Designed for use on 4-1/2" and compatible 5" angle grinders Benchmark Abrasives 4-1/2" Corded Angle Grinder Powerful 7-amp motor 11,000 RPM operating speed 120V corded design for consistent power Compact 4-1/2" grinder platform Standard 5/8"-11 threaded spindle 6.5-foot power cord Rugged housing for demanding shop and fabrication environments Compatible with Benchmark Abrasives flap discs, grinding wheels, cut-off wheels, and other properly rated accessories Spanner wrench and replacement brushes included Applications & Performance This holiday bundle is built for welders, fabricators, metalworkers, maintenance departments, automotive professionals, contractors, and anyone who uses flap discs regularly and wants a complete grinding setup with plenty of abrasive inventory on hand. Zirconia grain is self-sharpening and performs particularly well under the heat and pressure generated during metal grinding. As worn abrasive fractures away, fresh cutting edges are exposed to maintain consistent performance. T27 Flat Face — When Should I Use It? These flap discs use a T27 flat-face profile. T27 flap discs are preferred when working on non-flat, curved, or contoured surfaces where the flat disc profile allows the operator to approach the workpiece naturally. Useful applications include blending and finishing: Fence posts Gates Railings Risers Pipe Tubing Curved fabrication Contoured metal components For grinding broad, flat surfaces such as bead welds on plate steel, a T29 angled flap disc often provides a more ergonomic grinding angle. Materials Steel, Iron & Specialty Alloys Cast Iron Steel Stainless Steel Titanium Nickel Alloys Wrought Iron Non-Ferrous Metals Copper Other Materials Fiberglass Plastic Hard Rubber Wood Stone Machine Compatibility The grinder you need is included with this bundle. Compatible examples include: Benchmark Abrasives 4-1/2" Corded Angle Grinder — INCLUDED FREE Compatible 4-1/2" angle grinders Compatible 5" angle grinders using a 7/8" arbor mounting system The flap discs are rated to a maximum of 13,300 RPM, while the included Benchmark Abrasives grinder operates at 11,000 RPM, keeping the machine within the rated operating speed of the discs. The flap discs use a 7/8" arbor opening and mount using the grinder's appropriate backing flange and retaining nut. Safety Tips Always wear proper PPE, including safety glasses with a face shield as needed, hearing protection, respiratory protection when required, and suitable hand protection. Keep all machine guards properly installed and positioned during use. Inspect flap discs before each use. Do not use discs that are damaged, cracked, excessively worn, wet, or otherwise compromised. Confirm that the flap disc's maximum RPM meets or exceeds the operating speed of the grinder. Never exceed the flap disc's 13,300 RPM maximum speed. Disconnect the grinder from its power source before installing, removing, or changing flap discs. Make sure the flap disc is properly seated and securely mounted before operation. Allow the grinder to reach full operating speed before contacting the workpiece. Maintain control of the grinder with both hands during operation. Use moderate pressure and allow the abrasive to perform the cutting. Excessive pressure can generate unnecessary heat, increase wear, and reduce grinding efficiency. For lighter stock removal or finer blending, use a lighter touch or feathered grinding approach. Direct sparks and grinding debris away from yourself, other people, and combustible materials. Use these flap discs for dry applications only. Read and follow the grinder manufacturer's operating and safety instructions before use. Frequently Asked Questions Is the Benchmark Abrasives Angle Grinder really free? Yes. During this holiday promotion, you pay the selling price of the 100 High Density Zirconia Flap Discs and receive the Benchmark Abrasives 4-1/2" Corded Angle Grinder at no additional cost. Exactly which grits are included? The bundle contains 100 total flap discs: 30 × 40 Grit 30 × 60 Grit 30 × 80 Grit 10 × 120 Grit This gives you a useful assortment covering aggressive stock removal through finer blending and finishing. Why does the bundle include more 40, 60, and 80 grit discs than 120 grit? The assortment is based on the same proven grit mix used in our mixed-grit High Density Zirconia Flap Disc pack. The heavier concentration of 40, 60, and 80 grit gives you more discs for the grinding and blending stages where flap discs typically see the most use, while still providing 120 grit for finer finishing work. Are these regular-density flap discs? No. These are our High Density / Jumbo Zirconia Flap Discs. They contain approximately 40% more abrasive material than our regular-density flap discs, creating a thicker disc with more usable abrasive for extended grinding life. What is zirconia abrasive? Zirconia is a durable, self-sharpening abrasive grain designed to perform well under the heat and pressure generated during grinding. As the abrasive wears, the zirconia grain fractures to expose fresh cutting edges, helping maintain consistent stock removal throughout the life of the disc. What is the difference between the four grits? 40 grit provides the most aggressive material removal in the bundle. 60 grit delivers strong cutting action with improved control and is an excellent general-purpose grinding grit. 80 grit provides smoother blending and surface refinement. 120 grit produces the finest finish in the bundle and is intended for lighter blending and finishing. Why are these T27 flap discs? The T27 design has a flat face and is particularly useful when grinding contoured and non-flat surfaces such as pipe, tubing, fence posts, gates, railings, and similar fabricated components. For primarily grinding broad flat surfaces such as weld beads on plate steel, a T29 angled flap disc may provide a more ergonomic grinding position. Will these flap discs fit the included grinder? Yes. The 4-1/2" x 7/8" flap discs are compatible with the included Benchmark Abrasives 4-1/2" Corded Angle Grinder when properly mounted using the grinder's flange and retaining nut. Can I use these flap discs on another angle grinder? Yes, if the grinder is approved for 4-1/2" flap discs, has the correct guard and 7/8" bore mounting hardware, and has a maximum no-load speed no higher than 13,300 RPM. Check the tool instructions before using them on a 5" grinder. Is the grinder speed safe for these flap discs? Yes. The included grinder operates at 11,000 RPM, while the flap discs are rated for a maximum speed of 13,300 RPM. What else can I use the included angle grinder for? The Benchmark Abrasives 4-1/2" Corded Angle Grinder can run a wide range of compatible accessories, including: Flap discs Cut-off wheels Grinding wheels Surface preparation wheels Stripping products Wire wheels and brushes Other properly sized and speed-rated angle grinder accessories Match the accessory diameter, mounting hardware, guard, and maximum RPM to the grinder and its operating instructions. Is this only a holiday offer? Yes. This is a limited holiday bundle, combining 100 High Density Zirconia Flap Discs with a FREE Benchmark Abrasives 4-1/2" Corded Angle Grinder while the promotion is available.