Stanley 94 542W Combination Wrench Set Alloy Steel, Chrome, 7 Tools, 3 8 in to 3 4 in Range of Head Sizes G7719787 20 Power Source 12V DC 20 Power Source 12V DC Certification NIST Calibrated Features Touch Tester Lower Resistance Limit 750 kilohm Measuring Voltage No Footwear Upper Resistance Limit 35 megaohm Wrist Strap Upper Resistance Limit 10 megaohm Calibration Certificate Type NIST Wrist Strap Lower Resistance Limit 750 kiloohm Footwear Lower Resistance Limit 750 kiloohm Items Tested Footwear Ink Color Black Pen Type Retractable Roller Ball Pen Grip Textured Cushion Pen Tip 0 ) 15 Degrees Number of Tools 7 Head Type Offset Weight 5 lb Box End Type Spline Box End Opening Type Rounded Nonsparking No Non Magnetic No Head Offset Angle 15 Degrees Container Type None Handle Type One Piece Corrosion Resistant Yes Material Alloy Steel Tether Style Tether Capable Arc Swing 5 Degrees Insulated No Wrench Product Grouping Wrench Sets Anti Slip Design No Opening Angle (Deg