Item Specifications UPC 703652326831 Package Quantity 12 Size No. 20 Inch / Metric Inch Thread Dia. 0.161" Length 3-1/4" Flute Style Ground Flute Flute Length 2-1/8" Shank Style Straight Shank Material M2 High Speed Steel Finish Black Oxide Finish Product Code 5150-37410 SKU 207SP0020