Picks part no: 009920 RX/20 recommended for mixed type of soil suitable for 20mm holders carbide weight: 33 g 50 pcs./box part no: 001222 RX/22 recommended for mixed type of soil enlarged body for use under heavy loads carbide weight: 33 g 40 pcs./box part no: 001622 R6M/22 recommended for abrasive soil suitable for asphalt milling carbide weight: 37 g 40 pcs./box part no: 001322 RS/22 recommended for mixed type of soil enlarged body for use under heavy loads carbide weight: 37 g 40 pcs./box part no: 001722 R7/22 recommended for abrasive soilsuitable for asphalt millingcarbide weight: 42 g40 pcs./box part no: 001422 RS/22 HD recommended for all kind of soil enlarged body for use under heavy loads extra large carbide: 48 g 40 pcs./box part no: 001522 RX/22 HDR special shape of carbide maximum performance in all soil types extra large carbide: 52 g 40 pcs./box part no: 001725 RX/25 HD special shape of carbide suitable for 25mm holders extra large carbide: 52 g 30 pcs./box