Bosch Cut-Off Wheel TCWX27S450 4-1/2 Inch Type 27A (0.045 Thin X-Lock 7/8 Arbor 60 Grit Aluminum Oxide Stainless Steel Metal Parting Tool Unit)

Bosch TCWX27S450 4-1/2" x .045" X-LOCK Type 27A Metal & Stainless Cut-Off Wheel

The Bosch TCWX27S450 4-1/2-inch Type 27A depressed center cut-off wheel delivers burr-free straight and flush parting cuts across structural steel, stainless steel tubing, threaded rod, and metal conduit. Engineered with 60-grit aluminum oxide abrasive grain bound by a high-strength resinoid matrix with multi-layer stranded fiberglass reinforcement, this 0.045-inch ultra-thin wheel slices tough alloys at up to 13,280 maximum RPM with minimal friction and thermal discoloration. Outfitted with the snap-on X-LOCK mount for up to 5X faster tool-free wheel swaps and backward compatibility with standard 7/8-inch arbor flange nuts, it equips certified welders, mechanical pipefitters, and metal fabricators with precise, low-vibration cutting performance across 4-1/2-inch angle grinders.

Best Used For:

• Stainless Steel Pipe and Tubing Parting: Cutting thin-walled stainless lines, sanitary piping, and exhaust tubes with minimal heat tinting and virtually no burr formation.
• Flush Cutting in Confined Spaces: Utilizing the Type 27A depressed center profile to execute clean cutoff passes flush against walls, frames, and structural columns.
• Rebar, Angle Iron, and Conduit Slicing: Parting high-tensile steel reinforcing bars, solid bar stock, and EMT electrical conduit quickly on busy jobsites.

Key Performance & Safety Features

• Tool-Free X-LOCK Snap-On Mount: Clicks audibly and securely into X-LOCK grinders in seconds without spanner wrenches or loose flange nuts, eliminating mounting errors.
• Universal Backward Compatibility: Center interface mounts seamlessly onto traditional 7/8-inch threaded arbor spindle grinders using standard locking nuts.
• Ultra-Thin 0.045-Inch Profile: Slices through dense metals with reduced cutting resistance, preventing tool bog-down and maximizing battery life on cordless grinders.
• 60-Grit Aluminum Oxide Blend: High-grade abrasive mineral crystals maintain rapid penetration rates and durable wheel integrity in high-friction alloy parting.
• Multi-Layer Stranded Fiberglass Reinforcement: Structural woven fiberglass mesh layers deliver high burst resistance and operator safety during handheld cutting.
• Depressed Center Type 27A Architecture: Recessed hub accommodates mounting hardware to provide flush cutting capability and structural wheel stiffness.

What's Included

• (1) Bosch TCWX27S450 4-1/2" x .045" Type 27A X-LOCK Aluminum Oxide Metal & Stainless Cut-Off Wheel

Technical Specifications

Pro-Tip: When cutting stainless steel tubing, allow the 13,280 max RPM wheel velocity to do the work with light feed pressure; avoiding excessive downward force prevents localized heat discoloration and preserves the 0.045-inch cutting edge.