Whats the max depth of cut?

Thanks for the reply of Kenneth D. Pace on Oct.20,2016: It is not a cutter. It is a tool holder. The tool you install determines the cutting depth.

What drawbar thread is in the R8 to 3/4" Weldon shank adapter?

The thread for an R-8 drawbar is 7/16(.4375)x20 tpi, Thanks

What is the function of this adapter? Don't 3/4" Weldon shank tools fit into a 3/4" R8 collet directly?

A R8 shank has a tapper and straight shank held in a mill with a draw bar. Weldon tools typically have a 3/4" dia straight shank and the tool is held in place with one to two set screws that contact a machined flat on the shank of the Weldon tool to secure it into the adapter. If you look at the tool above you will see the tapper and straight shank of the tool, Weldon's have no tapper.

can the R8 taper just be cut down to a 1/2" diameter and shortened to fit the 1/2 " chuck on my drill press

R8 have a inside hole for draw rod which 7/16, so not much metal left to clamp to, cut it off and screw a bolt in place of turning it down, there a some arbors on line for drill press. I bought one on ebay.

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R8 to 3/4'' Weldon Shank Arbor Adapter, Compatible with Annular Cutters for Bridgeport Milling Machines, Durable Construction, MC08-0034

Product ID: 37588437

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Details

Material
Hardened Steel
Cutting Diameter
0.75 Inches
Finish Type
Uncoated
Shank Type
R8
Brand
Accusize Tools

🔧R8 Shank Size

🔩Compatible with 3/4'' Weldon

⚙️Durable Construction

Description

🔩 Elevate Your Milling Game!

ROBUST DURABILITY - Crafted from high-quality materials for long-lasting performance.
ENHANCED PRODUCTIVITY - Maximize your machining efficiency with this essential tool.
PRECISION ENGINEERING - Designed for seamless integration with Bridgeport Milling Machines.
EFFORTLESS INSTALLATION - Quick and easy setup with a 7/16”-20 drawbar size.
VERSATILE COMPATIBILITY - Fits any size annular cutters with a 3/4'' Weldon shank.

The Accusize Industrial Tools R8 to 3/4'' Weldon Shank Arbor Adapter is a precision-engineered tool designed for compatibility with annular cutters on Bridgeport milling machines. Featuring a durable construction and effortless installation, this adapter enhances productivity and versatility in your machining tasks.

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