192-Pc. Mechanics' Tool Set Heath Mfg Grooved hex shank prevents slipping

Grooved hex shank prevents slipping in drill chuck or bit extension

3/8” ID | 1/2” OD

and ENDURA-BOND

Traffic Tolerance: Excellent

National Pipe Taper NPT

192-Pc. Mechanics' Tool Set Heath Mfg Grooved hex shank prevents slipping192 piece, mechanic tools set, includes: 1 4", 3 8", & 1 2" dr pear head ratchet, 1 4" dr 6pt socket: 5 32, 3 16, 7 32, 1 4, 9 32, 5 16, 11 32, 3 8, 7 16, 1 2, 9 16, metric 4 14, 1 4" dr, 6pt deep socket: 5 32, 3 16, 7 32, 1 4, 9 32, 5 16, 11 32, 3 8, 7 16, 1 2, 9 16, metric 4 14, 1 4", 3 8, 1 2 dr ext.: 3", 6", 10", 3 8" dr 6pt socket: 1 4, 5 16, 3 8, 7 16, 1 2, 9 16, 5 8, 11 16, 3 4, 13 16, 7 8, metric 10 21 3 8" dr, 6pt deep socket: 1 4, 5 16, 3 8,