An R8 Collet is a precision tool-holding collet designed for R8 spindle milling machines, commonly used on Bridgeport-type mills. It provides accurate centering, strong gripping force, and quick tool changes for holding end mills, drills, and cutters.
An R8 Collet is a tool-holding collet designed for R8 spindle milling machines (commonly Bridgeport-type mills).
It provides accurate centering, strong grip, and quick tool changes for end mills, drills, and cutters.
🔹 KEY FEATURES
📐 R8 COLLET – STANDARD DIMENSIONS
|
Parameter |
Dimension |
|
Collet Type |
R8 |
|
Taper |
R8 Taper (7/24) |
|
Major Diameter |
31.75 mm (1.25") |
|
Overall Length |
~101.6 mm (4") |
|
Drawbar Thread |
7/16" – 20 UNC |
|
Keyway Width |
4.76 mm (3/16") |
|
Typical Accuracy (TIR) |
≤ 0.010 – 0.02 mm |
📌 R8 collets are single-size collets (each collet holds one exact size).
📏 R8 COLLET – COMMON HOLDING SIZES
🔹 Inch Sizes
🔹 Metric Sizes
🧩 CONSTRUCTION DETAILS
⚙️ TYPES OF R8 COLLETS
🏭 APPLICATIONS
📦 SUPPLY OPTIONS
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