Aprica HSS Expanding Mandrel Sets from 1/2" - 2"

Our Mandrel sets are precision ground and heat treated for maximum concentricity and holding power.

The Centre holes are also ground and lapped.

The automatic expansion feature can be utilized on any bore (standard or non-standard) within the range of the mandrel.

The arbors are tapered and the sleeves are flexible.

Your size is obtained by moving the sleeve along the arbor.

• Suited to Holder centerless work in the Lathe, Mill & Grinder

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Expanding mandrels on a lathe are a type of mandrel that grip the interior diameter or ID of a workpiece.

On an expanding mandrel, the shaft and sleeve have corresponding tapers and are machined from hardened steel. The sleeve is slotted and expands when pressed into the tapered shaft.

Expanding mandrels on a lathe are:

• used for workpieces with a greater range of sizes
• work like a chuck in that the grips can be forced outward against the inside hole in the workpiece
• are used to machine the outside diameter (OD) of a workpiece with a hole that has been previously reamed or bored
• are mostly designed for grinding work and inspection but can be used for turning on an engine lathe when you want to run the workpiece concentric to the ID
• Are used to support narrow workpieces like milling cutters and V-belt pulleys
• Are used on other machines that can support work between centers like a cylindrical grinder and tool cutter grinder

Option 1: 5pc 1/2" - 1" Set

Option 2 : 3pc 1" - 2" Set

Option 3: 8pc 1/2" - 2" Set