Drillco® Screw Thread Insert Tap, 5/16"-18, 4 Flutes, High Speed SteelScrew Thread Insert (STI) taps are dimensionally oversize and utilize a larger tap drill size so that thread they produce will accommodate a helical screw thread insert Specifications Material High Speed Steel Pipe Size 5 16" 18 No. Of Flutes 4 Finish Bright Country Of Origin United States

Thread Cleaner on opening holds and cleans 5/8” (16 mm) pole line and hardware bolts or threaded rod

primed aluminum and painted aluminum surfaces even when cycled three or more times

Includes: 3/8" x 3/4" (SA-3)

Soft conformable

Non-slip dual material handles for comfort and performance

Capacity (Soft)

cleaning and polishing on steel

Exclusive TORQUE DRIVE® design provides off-corner loading for better grip and reduced fastener rounding

Highly concentrated - dilutable up to 1:200

making it ideal for heavy torque on any style on nut or bolt head

Adjustable swivel guard has 9 positive lock settings no tools required (model 402313)

Features the highest quality Viton® seals for maximum chemical resistance