3M Heat Shrink Multiple-Wall Polyolefin Tubing EPS400-.300-48"-Black-12Pcs Series-Wera Bit-Checks Universal Micro Bits have a 4mm

Micro Bits have a 4mm hex drive

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TORX® and XZN screwdriver sockets for different inside profiles

Dual side printed blade Ft/In/16ths front side

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3M Heat Shrink Multiple-Wall Polyolefin Tubing EPS400-.300-48"-Black-12Pcs Series-Wera Bit-Checks Universal Micro Bits have a 4mmGeneral Information Brand 3M Heat Shrink Type Adhesive Lined Polyolefin Heat Shrink Tubing Tubing Type Dual Wall (Adhesive Lined) Country Of Origin United States Sold As Case California Residents Proposition 65 Warning Dimensions and Specifications Expanded Inner Diameter 0. 3 in Expanded Inner Diameter (Metric) 7. 62 mm Inner Diameter After Shrink (Imperial) 0. 06 in Inner Diameter After Shrink (Metric) 1. 52 mm Inner Diameter Before Shrink