Twister Rail Drill Bits - 7/8" Drill Bits & Sockets Tools 1-3/4" tapered broach and 8-point

1-3/4" tapered broach and 8-point deep length impact socket with 1" square drive

Nitrocarburization surface treatment for corrosion protection

tagged and stamped with 3500 lb

In our field testing of the LDA-40 cordless torque tool

and is easy to replace when it wears down

Twister Rail Drill Bits - 7/8" Drill Bits & Sockets Tools 1-3/4" tapered broach and 8-pointDescription 7 8" titanium aluminum nitrate coated Twister annular (hollow) drill bits by Trak Star. Hi speed, premium steel. According to AAR field testing, they keep rail temperatures around the hole 35 degrees Fahrenheit above outside temperatures, eliminating thermally activated embrittlement and stress cracks.