Twister Rail Drill Bits - 7/8" Drill Bits & Sockets Tools Easily set torque levels with

Easily set torque levels with the LED display for fast adjustments

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

heavy-duty steel head

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

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Twister Rail Drill Bits - 7/8" Drill Bits & Sockets Tools Easily set torque levels withDescription 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.