Our mission is a vision for innovation, superior product, manufacturing, and service. Our products are the one stop shop for houseware tools which includes hole saws, bandsaw blades, jigsaw blades, reciprocating saw blades, drill bits and other power tool related accessories.Specifications. Size: 0.25 in. Weight: 0.05 lbsFeatures. Used as replacement bit in all mandrels. Used for 1 2 piece bi-metal hole saws