Item Specifications UPC 703652325209 Package Quantity 12 Size No. 21 Inch / Metric Inch Thread Dia. 0.159" Length 3-1/4" Flute Style Ground Flute Flute Length 2-1/8" Shank Style Straight Shank Material M2 High Speed Steel Finish Black & Gold Finish Product Code 5150-38335 SKU 207US-21