Pye Tools Pvt. Ltd. Offers Sturdy Octagonal Chisel. Pye Tools Pvt. Ltd. Is ISO 9001: 2000 TUV certified company. Other products offered are Hand tools, pliers, screw drivers etc. Sturdy Octagonal Chisels are made out of drop forged high grade Steel, and thereafter machined and heat-treated using state-of-the-art manufacturing techniques. Sturdy Octagonal chisels have the tip angle confirming to IS standards. There are 5 models viz: - PYE - 771, PYE-772, PYE773, PYE-774 and PYE-775. These are painted in a dust-proof environment to avoid corrosion. They are used for general work on cutting and chipping of metals, and shaping, facing and cutting of stonework.