Twister Rail Drill Bits - 1-3/8" GetQuote 5/16" diameter and 3-3/4" long

5/16" diameter and 3-3/4" long

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Engineers rely on this track gauge for its accuracy and ease of use

⚠️WARNING: This product can expose you to chemicals including Benzene

To AREMA plan #51 latest revision

Twister Rail Drill Bits - 1-3/8" GetQuote 5/16" diameter and 3-3/4" longDescription This 1 3 8 annular drill bit by Trak Star is designed for routine use in railroad rail drilling operations and is ideal for cutting through high hardness rail. It is compatible both with Trak Star Hougen track drills and a wide variety of other drills used in the rail industry. Twister drill bits use an annular design that enhances lubricant flow, which results in lower temperatures around the drilled hole, as well as reduced burring and