OSG Roll Tap VP New Roll for Blind Holes STD No. 4 Number of Threads 40 Thread Length 15mm 8317757 VP-NRT-B-STD-NO.4-40UNC 1 Piece

Catalog number: VP-NRT-B-STD-NO.4-40UNC Features: ● Powdered high speed steel and special screw specifications enable long-life machining of a wide range of work materials. Applications: ● For blind hole machining. ● Work materials: low, medium and high carbon steel, alloy steel, stainless steel, copper, brass, brass castings, rolled aluminum, aluminum alloy castings, zinc alloy castings, cast steel. Specifications: ● Precision: RH5 ● Precision notation: STD ● Nominal dimensions: NO.4 ● Thread length (mm): 15 ● Total length (mm): 44 ● Shank diameter (mm): 3 ● Shank square section (mm): 2.5 ● Number of threads: 40 ● Number of engagement threads: 2 ● Machined thread: Unified thread Material/Finish: ● Powdered high speed steel (CPM) Caution: ● Pilot hole machining has a large effect on the accuracy of the screw. ● Be careful when drilling pilot holes.