BRIDGEPORT® Compatible Modular Subplates

Description

Bridgeport mills have been a staple in the machine shop since the dawn of machining — and we’re proud to offer Tosa Tool modular fixturing that fits them.

Modular fixture plates for Bridgeport CNC mills, made to order in Wisconsin, USA. Pick your machine series and model below for an OEM-fit envelope with the standard Tosa Tool (TT) hole pattern — two nestled 1.250″ grids (precision Ø.5010″ bores + 1/2-13 threaded holes with counterbore).

Materials: PH 4140 PreHard steel · MC medium-carbon steel · AL 7075-T6 aluminum.

Select your plate, then Add Options to your Modular Subplate and add built-to-fit hardware accessories.

Don’t see your mill, or need a custom size? Use the Custom Plate Builder or call 608-721-TOOL / dan@tosatool.com.

Bridgeport compatible modular subplates

Tosa Tool builds OEM-fit modular fixture plates for Bridgeport CNC mills and machining centers. These plates are designed around your machine’s table so you can mount once and change setups with modular workholding — without re-tramming a vise every job.

Machine series & models in the configurator

Use the dropdowns above to select series → model → material. Current Bridgeport options include:

• Series 1: Series1
• XR series: XR1000, XR1320
• GX series: GX300, GX480, GX510, GX1000, GX1300, GX1600, GX480APC, GX710
• V series: V480, V710, V1000

If your Bridgeport mill isn’t listed, we can still help — use the Custom Plate Builder or email your table size and model to dan@tosatool.com.

Add Options & built-to-fit accessories

Select your plate, then Add Options to your Modular Subplate and add built-to-fit hardware accessories. Available add-ons include:

• Keyway locating bores & pins
• Set screws and plugs
• Plate mounting kit (t-nuts and capscrews)
• TT 6″ modular vise
• 8″ modular angle plate
• 20-pc modular pin kit
• Tosa Tool modular full kit or half kit (with shipping)

That way the plate and the accessories that fit it travel together in one order.

Tosa Tool hole pattern (TT)

The TT standard hole pattern is two nestled 1.2500″ grids sharing the same plate:

• Precision bore grid: Ø.5010″ ±.0002 TYP on 1.2500″ centers — for locating pins and accurate repeat setups
• Threaded hole grid: 1/2-13 UNC 2B thru TYP on 1.2500″ centers, with Ø.5625 × .19 counterbore (~3/16″ deep) — for clamps, bolts, and modular accessories

The two patterns are offset so bores and threaded holes alternate; neighboring holes (bore next to thread) fall on 0.625″ centers. Same pattern across Tosa Tool modular subplates so options and built-to-fit hardware accessories line up from plate to plate.

Material options

• PH — 4140 PreHard steel: excellent strength and durability for production workholding
• MC — medium-carbon steel: strong, long-life steel plate
• AL — 7075-T6 aluminum: light but strong; popular when weight and handling matter

Made to order in Wisconsin

These plates are MTO from TosaTool LLC. Lead times are typically short for standard configurator builds — confirm current timing when you order or ask Dan at 608-721-TOOL.

Complete the setup

After you select your plate, use Add Options to your Modular Subplate for built-to-fit hardware accessories — and check You May Also Like below for the modular vise, angle plates, and clamping kits that finish the TT-pattern setup.

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