Microstop Countersink Cages and Aircraft Tools

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A Legacy of Precision
Trusted by the best.
For over 40 years, Wescon has set the benchmark for dependable, American-made airframe assembly tools (AFAT). Trusted by aerospace leaders like Boeing and Lockheed Martin for our unwavering quality and precision, our legacy is built into every tool we produce. When your mission demands reliability, choose the name that’s built to last—Wescon.
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Our Commitment
Unmatched Service
Excellence.
We’re obsessed with customer satisfaction, and our service levels are unmatched in the industry. Our team is fast, friendly, and always available — around the clock.
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Precision Aviation Tools
Designed and Manufactured in
United States.
Wescon is a highly specialized precision aviation tool manufacturer. Our products are 100% designed and manufactured in the United States. We take pride in serving the aviation and aerospace manufacturing industry since 1987. We offer same day shipping on in-stock items on orders placed online before 12PM CST.
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Most Popular Kits

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WESKIT004Heavy-Duty Microstop & Countersink Kit with Additional Foot Piece Options

WESKIT007Heavy-Duty Microstop & Countersink Kit

WESKIT0061/2-13 Threaded Drill Guide and Drill Bushing Kit

WESKIT009Slip Fit Bushing Kit, 12 Piece - Two Egg Cup Guides and Mini Drill Guide

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Microstop Countersink Cages

Use our configurator to design and build a microstop countersink cage to your requirement. We'll show you our stock availability and lead times.

Need help switching from another manufacturer?

Try our Cross Referencing tool

WES296 SERIESStub Length Cutter Capacity: 1/2″ - 5/8″ Threads: 1/4-28, M6x1

WES297 SERIESStub Length Stainless Steel Cutter Capacity: 1/2″ - 5/8″ Threads: 1/4-28, M6x1

WES396 SERIESCompact Cutter Capacity: 7/16″ - 1/2″, 10mm - 12mm Threads: 1/4-28, M6x1

WES397 SERIESCompact Stainless Steel Cutter Capacity: 7/16″ - 1/2″, 10mm - 12mm Threads: 1/4-28, M6x1

WES596 SERIESHD Standard Cutter Capacity: 3/4″ - 7/8″, 15mm - 22mm Threads: 1/4-28, M6x1, M8x1

WES597 SERIESHD Stainless Steel Cutter Capacity: 3/4″ - 7/8″, 15mm - 22mm Threads: 1/4-28, M6x1, M8x1

WES596-ER SERIESExtended Reach Cutter Capacity: 1/4″ - 1/2″, 6mm - 12mm Threads: 1/4-28, M6x1

WES596-EXA SERIESExtended Adjustment Cutter Capacity: 5/8″ - 3/4″

WES596-ES SERIESExtended Stroke Cutter Capacity: 3/4″ - 7/8″

WES598 SERIESHigh Speed Heavy Duty with Pivoting Shaft (Swivel Shaft) Cutter Capacity: 3/4″ - 7/8″, 15mm - 22mm Threads: 1/4-28, M6x1, M8x1

WES599 SERIESHigh Speed Heavy Duty with Pivoting Shaft (Swivel Shaft) Cutter Capacity: 3/4″ - 7/8″, 15mm - 22mm Threads: 1/4-28, M6x1, M8x1

WES696 SERIESLarge Capacity For Aluminum & Composites Cutter Capacity: 7/8″ - 1-1/2″, 22mm - 38mm Threads: 3/8-24, 7/16-20, M8x1, M10x1

Taper Lok MicrostopsExtended Reach For Taper Lok Drill Reamers Cutter Capacity: 3/4″ - 1″ Threads: 1/4-28, 7/16-20

Custom Microstops

Vacuum skirts for FOD extraction

Microstop with vacuum skirt that connects to a standard shop vacuum, pulling chips and carbon dust away as you cut.

See vacuum skirt options

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Drill Chucks

Use our configurator to design and build a chuck to your requirement. We'll show you our stock availability and lead times.

COLLET CHUCKS

WES1605 SERIESThreaded

WES1615 SERIESShort Series Quick Change Shank

WES1625 SERIESStandard Series Quick Change Shank

QUICK CHANGE CHUCKS

WES1750 SERIESStandard Series

WES1760 SERIESStubby / Short Series

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Drill Guides

Our drill guides are designed to provide precision and stability during drilling operations. Explore our range of drill guides to find the perfect fit for your needs.

WES5723 SERIESSF Bushing Mini Drill Guides SF Bushing: 1/2″ x 3/4″ Foot Piece: Aluminum, Plastic

WES5600 SERIESThreaded Mini Drill Guides Bushing Thread: 3/8″-16, 1/2″-13 Foot Piece: Aluminum

WES5620 SERIESThreaded Mini Drill Guides Bushing Thread: 3/8″-16, 1/2″-13 Foot Piece: Aluminum, Plastic

WES5720 SERIESThreaded Egg Cup Drill Guides Bushing Thread: 3/8″-16, 1/2″-13 Foot Piece: Aluminum, Plastic

WES5700 SERIESThreaded Bushing Egg Cup Drill Guides Bushing Thread: 3/8″-16, 1/2″-13 SF Bushing: 1/2″, 3/4″

WES5703 SERIESEgg Cup Drill Guide - Slip/Fixed Renewable Bushing Type SF Bushing: 1/2″, 3/4″

WES5400 SERIESSF Bushing Dog Bone Drill Guides SF Bushing: 1/2″, 3/4″ Bushing Length: 1/2″ - 1″

WES5831 SERIESHandle for SF Drill Bushings SF Bushing: 5/16″, 1/2″, 3/4″

Other Drill Guides

Drill Bars

Drill Bushings

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Other Products

Nozzles

Coating Measurement Tools

SAME DAY SHIPPING

Don't let delayed shipments
hold up your assembly line.

We frequently restock our most popular items. Most of our standard microstops are in stock.

All our online orders are fulfilled out of Houston, Texas facility and ships same day on in-stock orders placed before 12 PM CST.

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© Wescon Industries Inc. 2026601 Century Plaza Dr. Houston, TX 77073 Our products are 100% designed and manufactured in our facility in Texas.
Wescon is a brand of GI Corporation. Our products are sold in the European Union through GI Europe B.V. (KVK# 99685124) based in the Netherlands.

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Precision Aviation Tools Made in the USA

Trusted by the best.

Unmatched Service Excellence.

Designed and Manufactured in United States.