Sleeves have multiple uses in machine shops

An expanded series of sleeves with square holes is available in two styles from Stock Drive Products.

An expanded series of sleeves with square holes is available in two styles from Stock Drive Products.

The sleeves have multiple uses in machine shops where they are employed as collars to hold tool bits in lathes or drill presses.

They are also used for joining two square rods together, holding the rods by set screws or by welding.

One style of the square hole sleeves, designated as A 7C19-T, comes with a tapped hole at one end to receive a supplied backup screw.

The second style, designated as A 7C19-P, has a square hole end-to-end without a thread for a backup screw.

The square holes in the sleeves range from 0.128 to 1.260in across flats, designed to hold tool-bit sizes from 0.125 to 1.25in square.

Outer diameters of the sleeves range from 0.2187 to 2in, with tolerances held to 0.0005in.

Material is cold-rolled steel 1117, hardened when requested.

Concentricity is 0.003in TIR between outer diameters and square holes.

Availability is from stock.

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