Check the listing for details. 10 ea 3/16" Semco .185"x.125" Drill Bit Double Margin Split Point USA made. Condition: New – Open box. Listed at 19.95 USD. .185" x .125" Double Margin 135 Degree Split Point 3/16" Made by Semco in USA Lot of 10 New Old Stock from a major aircraft manufacturer Made from Aircraft grade High Speed Steel Made in USA Specifications: Material: High Speed SteelWire Size: n/a Decimal Size: .185" Finish: BrightOAL: 3- 5/8 "Flute Length: 2 1/8"Pilot: .125" Margin: Double MarginDrill Point: 135 ° Split Point* 135° Split point is Self Centering and prevents "walking" when drilling. * .125" Pilot eliminates the need for pilot hole. * Double Margin for Superior hole finish * Made of the finest High Speed Steel by Precision Twist Drill Co. * Made in the USA * These bits were surplussed from a major aircraft manufacturer and are brand new. * Large amount of these bits available