Check the listing for details. JACK HAMMER STAR PICKET FENCE T POST DRIVER JACKHAMMER CHISEL RAMMING ATTACHMENT. Condition: Brand New. Listed at 31.05 USD. BRAND NEW (Tax Invoice is supplied, price includes 10% GST) STAR PICKET DRIVER JACKHAMMER ATTACHMENT( In the USA, Star Pickets known as T-POST DRIVER ) Will suit Hitachi, Makita, Ozito, Michigan, Baumr-AG, Bosch, Millers Falls and TWM Demolition Jack Hammers (Standard 30mm / 1.1/8" Hex) Features: Compatible with Hitachi PH65, PH65SA, TWM, Millers Falls PT4370, Michigan, Baumr-AG, BBT, Makita and many other Jack Hammer models - 30mm (1-1/8" Hex fitting). Solid Heavy Industrial / Trade Quality, built solid for Australian conditions. Drives Fence Pickets straight utalizing the impact force of your Jack Hammer. Solid & Strong Built to last with the impact force of slamming in Star Pickets. Internal Bore Diameter = 51mm with wall thickness 9mm, O/D = 69mm RRP is $219.99 for this Fence Picket Driver. Delivery will be by Australia Post