PFERD Hole Saws & Arbors Hole saw 609889 - PFERD 25100730, Manufactured by PFERD, the LS 30 30 mm 1 3/16 hole saw is a durable drill attachment suitable for creating precise circular cuts. With a diameter of 30 mm, it is ideal for cutting through a variety of materials. This product is commonly used in carpentry and metalworking applications. PFERD 25100730 LS 30 hole saw 30 mm HSS bimetal for multiple materials