Jetech 13PCS 3/8 Inch Drive Standard Impact Socket Set, Made with Cold-Forged, Heat-Treated Chrome Molybdenum Alloy Steel, 6-Point Design, Metric Size Includes from 7mm to 19mm with Steel Holder Rail

SET INCLUDES - 13pcs 3/8in drive metric size: 7mm, 8mm, 9mm, 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, and 19mm.

It comes with a steel holder rail to keep them in position.

Cr-Mo ALLOY STEEL - Cr-Mo impact socket features with added hardness, higher working temperatures, and corrosion resistance.

Much stronger to stand greater impact force than chrome vanadium ones.

COLD FORGING & HEAT TREATMENT - Greatly improve their performance with enhanced strength, increased wear-resistance, and lifespan.

Black phosphate finish is for corrosion and wear-resistance.

6-POINT & RADIUS CORNER DESIGN - Gives an exact and snug fit, allowing it to apply more torque and avoid slipping off.

Prolong the lifespan of fastener and socket with force distributed to the inwall.