The ATC 12DRLINE is the professional-grade 1/2" drive 12-point line socket engineered for drive line, transmission, yoke, and manifold bolt service on heavy-duty trucks—4-1/8" length clears drive yokes, clears cap screws, and delivers maximum torque without rounding fasteners. The Real Cost of Using Cheap or Wrong Sockets on Drive Line & Transmission Work Low-quality or 6-point sockets round off 12-point cap screws, slip under impact, or fail to clear yokes—causing fastener damage, repeated work, or safety issues during high-torque drive line and transmission service. Rounded cap screws / yoke bolts – $150–$600 extraction & replacement Slippage under impact – $400–$1,500 damaged fastener or tool Repeated fastener removal – $500–$2,000 extra labor & downtime Drive line / transmission delay – 1–5 days truck out ($800–$2,500/day) Shop tool replacement — $100–$400 new sockets / impacts Safety & comeback risk — Lost customer trust & warranty claims What is the ATC 12DRLINE Drive Line Socket? The ATC 12DRLINE Heavy Duty 1/2" Drive 12-Point Line Socket is a specialized impact socket with 4-1/8" length designed to clear drive yokes and reach cap screws on heavy-duty drive lines, transmissions, and manifolds. Built from premium chrome-molybdenum steel for impact resistance, it fits virtually all Class 6–8 trucks and trailers—ideal for professional diesel shops, fleet maintenance, and heavy-duty service where clearance and strength matter. Complete Tool Specifications & Compatibility Drive Size: 1/2" square drive Head Style: 12-point bi-hex Overall Length: 4-1/8" (clears drive yoke to cap screws) Material: Chrome-molybdenum steel, heat-treated Applications: Drive line, transmission, yoke, manifold, pump bolts Shipping Weight: 1.00 lb Price: $30.00 Professional Features & Service Benefits ✓ Extended 4-1/8" Length Clears yokes & reaches recessed bolts ✓ 12-Point Bi-Hex Design Multiple angle engagement in tight spaces ✓ Chrome-Moly Construction Impact-rated & heat-treated durability ✓ Anti-Rounding Grip Holds fasteners securely under torque ✓ Universal Heavy-Duty Fit Works on most Class 6–8 trucks & trailers ✓ Impact & Torque Ready Compatible with impact guns & breaker bars Economic Impact: ATC 12DRLINE ROI for Shops Scenario Cost Impact ATC 12DRLINE proper use Socket – $30.00 investment Rounded fastener extraction $150–$600 Damaged yoke / transmission bolt $400–$1,500 Repeated removal & downtime $500–$2,000 Total poor socket cost $1,050–$4,100 per incident ATC 12DRLINE ROI (first use) 35–137X return on investment When Heavy-Duty Techs Choose ATC 12DRLINE Drive line yoke cap screw removal & install Transmission housing & output shaft bolts Manifold, pump adapter & high-torque fasteners Class 6–8 truck & trailer drivetrain service Fleet maintenance & heavy-duty diesel shops Impact gun & breaker bar applications Tight clearance 12-point bolt work Reach & Grip Drive Line Bolts Perfectly. No Rounding. No Delays. Professional Results. Get ATC 12DRLINE – $30.00 Why Drive Line Pros Trust ATC 12DRLINE Heavy-duty technicians choose the ATC 12DRLINE for its yoke-clearing length, 12-point versatility, chrome-moly strength, and proven prevention of $1K–$4K in fastener damage and rework per bad socket. It delivers fast, secure, professional performance on every job. From Class 8 fleets to transmission shops, this socket keeps drive lines tight and trucks moving.