Feeler Gauges, Vernier Calipers -Z Axis Magnetic Dial Highlights Generic Brand Z Axis Magnetic Dial Description: A CNC machine setting tool Large measuring area, easy to operate; less spring force, can prevent small bur or small drill bit from breaking; sensitive and precise. It can be used for knives over 43mm in diameter. It is more easily applicable and offers more powerful functions! Made of premium stainless steel, high quality, durable Comes with storage box and test bar Specification: Outer Diameter: Approx.62mm/2.44inch Inner Diameter: Approx.44mm/1.73inch Height: Approx. 50mm / 1.97 inch material: stainless steel Package includes: 1 piece Axle Setter 1 piece Bar Case 1 piece