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Egg Cup Bushing Holders and Mini Drill Guides
Egg cup bushing holders and mini drill guides hold a drill bushing perpendicular to the part for hand drilling on aircraft structures. Choose by bushing: WES5703 and WES5723 guides take WESSF slip fit bushings from 5/16 OD x 3/4 in to 1/2 OD x 1 in, and WES5720 egg cups and WES5620 mini guides take WES5501 3/8-16 and WES5502 1/2-13 threaded bushings. The WES5631 handle fits only the WES5621 3/8-16 mini drill guide, and the WES5632 handle fits only the WES5622 1/2-13 mini drill guide. The body is anodized aluminum, with an aluminum or heavy duty plastic foot, made in USA.
| Part Number | Bushing Size | Bushing Type | Height | OD | Note | Lead Time |
|---|---|---|---|---|---|---|
| WES5723-1-A | 5/16" OD x 3/4" Len. | SF Drill Bushing | 1.40" | 1.00" | 3-Leg Anodized Aluminum | Ships in 3 Days |
| WES5723-1-N | 5/16" OD x 3/4" Len. | SF Drill Bushing | 1.40" | 1.00" | 3-Leg Heavy Duty Plastic | Ships Next Business Day |
| WES5723-2.5-A | 1/2" OD x 1" Len. | SF Drill Bushing | 2.00" | 1.50" | 3-Leg Anodized Aluminum | Ships in 6 Weeks |
| WES5723-2.5-N | 1/2" OD x 1" Len. | SF Drill Bushing | 2.00" | 1.50" | 3-Leg Heavy Duty Plastic | Ships Next Business Day |
| WES5723-2-A | 1/2" OD x 3/4" Len. | SF Drill Bushing | 1.50" | 1.20" | 3-Leg Anodized Aluminum | Ships Next Business Day |
| WES5723-2LA | 1/2" OD x 3/4" Len. | SF Drill Bushing | 1.50" | 1.00" | 2-Leg Anodized Aluminum | Ships Next Business Day |
| WES5723-2LN | 1/2" OD x 3/4" Len. | SF Drill Bushing | 1.50" | 1.00" | 2-Leg Heavy Duty Plastic | Ships in 3 Days |
| WES5723-2-N | 1/2" OD x 3/4" Len. | SF Drill Bushing | 1.50" | 1.20" | 3-Leg Heavy Duty Plastic | Ships Next Business Day |
| WES5723-3-A | 3/4" OD x 1" Len. | SF Drill Bushing | 2.00" | 1.50" | 3-Leg Anodized Aluminum | Ships in 10 Weeks |
| WES5723-3-N | 3/4" OD x 1" Len. | SF Drill Bushing | 2.00" | 1.50" | 3-Leg Heavy Duty Plastic | Ships in 10 Weeks |
| WES5723-A | 1/2" OD x 3/4" Len. | SF Drill Bushing | 1.50" | 1.00" | 3-Leg Anodized Aluminum | Ships in 3 Days |
| WES5723-N | 1/2" OD x 3/4" Len. | SF Drill Bushing | 1.50" | 1.00" | 3-Leg Heavy Duty Plastic | Ships Next Business Day |
| Part Number | Bushing Size | Bushing Type | Height | OD | Note | Lead Time |
|---|---|---|---|---|---|---|
| WES5703-1-A | 5/16" OD x 3/4" Len. | SF Drill Bushing | 1.50" | 1.20" | Ships Next Business Day | |
| WES5703-2-A | 1/2" OD x 3/4" Len. | SF Drill Bushing | 1.50" | 1.20" | - | |
| WES5703-2-A-L | 1/2" OD x 3/4" Len. | SF Drill Bushing | 1.88" | 1.50" | Ships Next Business Day | |
| WES5703-2-T | 1/2" OD x 3/4" Len. | SF Drill Bushing | 1.85" | 1.20" | Tripod Foot | Ships Next Business Day |
| Part Number | Bushing Size | Bushing Type | Height | OD | Lead Time |
|---|---|---|---|---|---|
| WES5621-A | 3/8"-16 | Threaded Drill Bushing | 1.00" | 0.69" | Ships Next Business Day |
| WES5621-N | 3/8"-16 | Threaded Drill Bushing | 1.00" | 0.69" | Ships Next Business Day |
| WES5622-A | 1/2"-13 | Threaded Drill Bushing | 1.13" | 0.81" | Ships Next Business Day |
| WES5622-N | 1/2"-13 | Threaded Drill Bushing | 1.13" | 0.81" | Ships Next Business Day |
| Part Number | Bushing Size | Bushing Type | Height | OD | Note | Lead Time |
|---|---|---|---|---|---|---|
| WES5721-A | 3/8"-16 | Threaded Drill Bushing | 1.45" | 1.00" | Anodized Aluminum | Ships in 3 Days |
| WES5721-N | 3/8"-16 | Threaded Drill Bushing | 1.45" | 1.00" | Aluminum with plastic feet | Ships in 6 Weeks |
| WES5722-A | 1/2"-13 | Threaded Drill Bushing | 1.45" | 1.00" | Anodized Aluminum | Ships Next Business Day |
| WES5722-N | 1/2"-13 | Threaded Drill Bushing | 1.45" | 1.00" | Aluminum with plastic feet | Ships Next Business Day |
| Part Number | Drill Bushing OD | Bushing Type | Height | Lead Time |
|---|---|---|---|---|
| WES5400-1-1000 | 1/2" | SF Drill Bushing | 1" | Ships Next Business Day |
| WES5400-1-500 | 1/2" | SF Drill Bushing | 1/2" | Ships Next Business Day |
| WES5400-1-750 | 1/2" | SF Drill Bushing | 3/4" | Ships Next Business Day |
| WES5400-2-1000 | 3/4" | SF Drill Bushing | 1" | Ships Next Business Day |
| WES5400-2-500 | 3/4" | SF Drill Bushing | 1/2" | Ships Next Business Day |
| WES5400-2-750 | 3/4" | SF Drill Bushing | 3/4" | Ships Next Business Day |
Slip/Fixed Renewable Drill Bushing Guide












Egg Cup Drill Guide - Slip/Fixed Renewable Bushing Type




Mini Drill Guide - Threaded


Mini Drill Guide - Threaded




Egg Cup Drill Guide - Threaded


Egg Cup Drill Guide - Threaded Bushing Type




Dog Bone Drill Guide






Looking for equivalent parts from other manufacturers?
Cross Reference SearchPrecision Egg Cup & Mini Drill Guides for Airframe Assembly
A drill bit that goes in at an angle leaves an elongated hole, and a fastener will not seat properly in it. Wescon egg cup and mini drill guides hold the bushing square to the part on flat skins and curved surfaces.
The mini drill guide has a smaller footprint for tight-clearance aerospace manufacturing and MRO work. The ergonomic egg cup sits stable on flat or curved work and keeps the bit from walking. Plastic or anodized aluminum footpieces protect the surface finish. Both guides hold hardened steel SF or threaded bushings for wear resistance and repeatability, and both are made in USA.
- 90° to the part: The bushing stays square, so the hole goes in straight and the fastener seats flush.
- Mini guides for tight spots: WES5620 mini guides and the mini size of the WES5723 fit where an egg cup will not.
- Footpiece choice: Plastic for painted or finished surfaces, anodized aluminum where wear matters more.
- Made in USA: Machined and inspected in-house, with no compromise on precision or quality.







