Bostitch 18-Gauge 2-1/8 In. Brad Nailer Kit18 gauge brad nailer kit. Oil free engine requires no daily maintenance and eliminates the risk of oil stains on work surfaces. Selectable trigger systems for easy conversion between sequential or contact modes. Trigger lockout mode for use when working in occupied spaces. Reversible belt hook with integrated pencil sharpener for ultimate convenience. Rear exhaust for ultra quiet operation without dust blow back. Swivel air fitting for greater