Twister Rail Drill Bits - 7/8" Tool Kits Tools 007" feeler stock complete with

007" feeler stock complete with holder

a durable material that provides sharp cutting action and extends the tool’s lifespan

polyurethane resin designed to quickly fill splits and holes in wooden ties increasing the longevity of the tie

Internal pressure relief for overload protection

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Twister Rail Drill Bits - 7/8" Tool Kits Tools 007" feeler stock complete 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.