As an Amazon Associate, we earn from qualifying purchases. OM154-12-40 Piloted Microstop Countersink Cutter 5/16'' x 100 x 40 Omega Technologies . OM154-12-40 Gallery Attributes Brand name, Manufacturer name, ManufacturerOmega Technologies Extra Product NameOM154-12-40 Piloted Microstop Countersink Cutter 5/16'' x 100 x 40 keywordsMicrostop, Countersink, Cutter moq, multiple1 MPN, SKUOM154-12-40 qtyInStock0 snippetPiloted aircraft stop countersink cutters. 5/16'' body diameter, high speed steel, 100 degree, 1/4-28 thread. Degree Angle: 100 Cutter Diameter: 5/16'' Pilot Diameter: #40 Distributor offers SellerSKUMOQIn stockMultiplePrices omegatec.comOM154-12-4011