Item No.: P09Y7013

.Material :Carbon Steel，Heat treatment

.Fits all mortising machines and drill press attachments.

.Square hole drill is mainly used for woodworking aspects.

.Clamping shank diameter: 19mm, shank type: round handle, slot diameter: 1/4 inches (6.35mm), 5/16 inches (8mm), 3/8 inches (9.5mm), 1/2 inches (12.7mm), 9/16 inches (14mm), 5/8 inches (16mm).