Engineered steel and heat treatment for maximum strength and flexibility. Suitable for standard and impact applications. Precision Milled Profile for Optimum Fit. 1/4 inch standard hex fitting. 20pcs Set supplied in storage case. PAYA TOOLS is a leading manufacturer & supplier of saw blades and power tools accessories. Over 35 years our manufacturing has continuously invested in the latest technology in manufacturing saw blades. Our target is provide customers reliable quality tools to reduce and eliminate on quality issues. We grow up from 5,000 ㎡ to 30,000 ㎡ manufacturing plant. The top brands on tools are partners in our production as well.