1911 Mainspring Housing Flexible Hone Set – Complete

Take your 1911’s performance to the next level with the TMC Mainspring Housing (MSH) Flexible Hone Set. This complete kit includes both 400-grit and 800-grit flexible hones, plus 2 ounces of specialty honing oil. By polishing and smoothing the spring tunnel, you reduce friction, improve hammer fall, and make cycling faster and more reliable. Whether you’re building a new 1911, performing maintenance, or upgrading a competition pistol, this hone set is a must-have.

Why Hone Your Mainspring Housing?

When manufacturers drill the mainspring housing spring tunnel, small machining ridges remain. These ridges can slow the hammer and reduce smoothness. By honing the tunnel, you remove imperfections, polish the interior, and create a low-friction surface. Consequently, your 1911 feels more responsive, and trigger pulls become cleaner. Moreover, faster cycling reduces wear on springs and internal components.

Two-Step Honing Process

Step 1 – 400 Grit Hone: Cuts down the rough machining ridges and evens out the spring tunnel. This step prepares the tunnel for a smooth, polished finish.

Step 2 – 800 Grit Hone: Provides a fine polish for a superior finish, reducing friction even further. This ensures consistent, smooth hammer fall and faster cycling for reliable operation.

By completing both steps, you maximize the efficiency of your mainspring housing, enhancing both feel and performance.

Complete Kit Includes

• 1 Flexible 400 Grit Silicon Carbide Hone

• 1 Flexible 800 Grit Silicon Carbide Hone

• 2 oz Specialty Honing Oil

• Twisted steel wire shaft with abrasive globules on flexible nylon filaments

• Each hone measures 4 inches in length

Pro Tip: Always use the included specialty honing oil. It lubricates the spring tunnel, prevents damage, and ensures an even, smooth finish for optimal results.

Perfect for Every 1911 Shooter

Whether you maintain a range gun, upgrade a competition pistol, or rebuild a firearm from scratch, this hone set improves action without permanent modifications. Additionally, it helps you get the most out of your 1911’s components while making your pistol more enjoyable to shoot.