Twister Rail Drill Bits - 1-1/16" Bridges & Structures Its high quality cam bearings

Its high quality cam bearings are built to last for years to come

Excellent accuracy

Yellow proline liquid marker for marking oily and dry surfaces

(1) Graduated taper gage

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Twister Rail Drill Bits - 1-1/16" Bridges & Structures Its high quality cam bearingsDescription This 1 1 16 hollow (annular) Twister drill bit makes it versatile for drilling rail in maintenance of way applications. It is built from hi speed steel with a titanium aluminum nitride coating, designed to maintain integrity and quality while drilling rail. According to testing by the AAR, these drill bits maintain a temperature around the drilled hole that is only 35 F higher than ambient temperatures. Thanks to the unique design and