This product is a replacement coring bit for HSC-715QR. This coring bit features the following: Made of heat-treated high carbon steel for long life and durability Can be replaced using a standard hex key (included in HSC-715QR) Cable Type 715QR Bit Size 0.715- (1.82 cm) Dimensions 2.72- (6.91 cm) x 1.01- (2.57 cm) x 1.01- (2.57cm) Weight 0.23 lb (104.42 g)