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Bushing/Compensator Fitting Mandrel
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$59.99
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SKU: 080804100
Overview
This fitting mandrel is designed to hold and center an oversized bushing or cone-style compensator while you turn the outside diameter to fit. Its two-piece setup threads together with the part captured between a flat seat and a tapered nose, helping position the work for lathe or drill press use. It is intended for careful fitting work where uniform sizing matters, and it comes with the rods needed for both bushing and cone-style compensators. The machined steel construction and included instructions make it a practical shop tool for gunsmithing tasks that call for controlled, precise adjustment.
Why Hunters Choose the Brownells
Makes Uniform,
Precise fitting of oversized bushings
Two-piece Mandrel
The bushing or compensator secured
Flat Seat
Tapered hardened nose help locate
Can Be
Mounted in a lathe or
Comes Both
Both A rod for bushings
Key Features
- Makes uniform, precise fitting of oversized bushings or cone-style compensators
- Two-piece mandrel threads together with the bushing or compensator between sections
- Flat seat locates the front of the bushing
- Tapered hardened nose automatically centers the rear
- Mounts in a lathe or drill press for O.D. fitting work
- Includes A rod for bushings, B rod for cone-style comps, and instructions
Best Used For
- Gunsmiths fitting oversized bushings or cone-style compensators to precise outside diameter
- Shop users needing a centered setup for lathe or drill press turning operations
- Users who want a two-piece mandrel for uniform, controlled fitting work
- Brownells customers handling bushing or compensator fitting with included A and B rods
Specifications
| Diameter | 11/16 in (17.4 mm) |
|---|---|
| Included Accessories | A rod for bushing; B rod for cone style comps; instructions |
| Length | Approximately 4 in (10.2 cm) |
| Material | Machined steel |
Pros
- Makes uniform, precise fitting of oversized bushings or cone-style compensators
- Two-piece mandrel threads together with the bushing or compensator secured between
- Flat seat and tapered hardened nose help locate and center the workpiece
- Can be mounted in a lathe or drill press for O.D. fitting
- Comes with both A rod for bushings and B rod for cone-style comps
Considerations & Trade-offs
- Designed for fitting oversized bushings or cone-style compensators, so it is a specialized tool rather than a general-purpose mandrel.
- Requires a lathe or drill press for use, which may limit convenience for users without that equipment.
- The 11/16 in. diameter and approximately 4 in. length may not suit every part size or setup.
- Instructions are included, but the tool is intended for careful fitting work and may require a measured, hands-on approach.
Suggested Comparisons
- Gun vise or barrel holding fixture
- Lathe turning accessories
- Drill press accessories
- Bushing and compensator installation tools
Suggested Accessories
- Lathe chuck accessories
- Drill press accessories
- Metal filing tools
- Measuring and layout tools
Frequently Asked Questions
What is this mandrel used for?
It is used to fit an oversized bushing or cone-style compensator by holding it centered while you turn the outside diameter.
How does the mandrel hold the part in place?
The two-piece mandrel threads together with the bushing or compensator between the pieces. A flat seat locates the front, and a tapered nose centers the rear.
Can it be used in a lathe or drill press?
Yes. The description says it can be mounted in a lathe or drill press for filing or turning the outside diameter as needed.
What comes with the mandrel?
It comes complete with an "A" rod for bushing use, a "B" rod for cone-style compensators, and instructions.
What are the listed specifications?
The listed specs are machined steel construction, 11/16 inch (17.4 mm) diameter, and approximately 4 inches (10.2 cm) long.