🔧 NSR 0.050" Precision Allen Driver – NSR4412 Heat-Treated Tip | Knurled Aluminum Handle | Ideal for #4-40 or M2.5 Set Screws A must-have tool for any slot car pit box, the NSR4412 Precision Allen Driver is designed for accuracy, durability, and control—perfect for racers who demand reliability when tuning their machines. 🛠️ Key Features 0.050" (1.27mm) tip – fits #4-40 and M2.5 set screws used on gears, wheels, and motor pinions Heat-treated steel tip – resists rounding and wear for long-term use Knurled aluminum handle – offers a comfortable, non-slip grip even during quick adjustments Precision machining – ensures tight, accurate fit in set screws, preventing stripping Built by NSR, one of the most respected names in performance slot car parts, this tool is trusted by competitive racers worldwide. 🧰 Perfect For Slot.it, NSR, JK, and other brands using 0.050" hex hardware Quick gear swaps, wheel adjustments, and fine tuning at the track or workbench Use with 1/32 or 1/24 scale slot cars 🚚 Shipping Ships next business day Shipping charged at cost based on weight and destination Combined shipping available—overcharges refunded upon request 🔁 Returns Return within 30 days if unused and in original condition Please contact us before initiating a return—we’re happy to help 🏁 Come Race With Us You’re invited to visit our private track in Sherwood, Arkansas. Schedule a race or just stop in for a few laps: 👉 www.slotcarclubhouse.com We also connect with other slot racers when traveling—let’s race! ~ Jim Cunningham 👉 OmniSlotBox.com