S (Shank Material): Built from solid steel for good rigidity during general internal boring.
25 (Shank Diameter): The round bar body features a 25 mm outer diameter. This fits directly into a turret or a standard reduction bushing (like a 25mm inner diameter sleeve).
S (Bar Length): Represents the standard ISO tool length of 250 mm.
S (Clamping Method): Screw-down clamping system. The insert is locked down tightly into its pocket using a center Torx screw.
V (Insert Shape): Engineered for 35-degree diamond-shaped inserts (V-shape), which allows for sharp, intricate profiles and undercuts inside a bore.
Q (Approach Angle): Features a 107.5-degree approach (lead) angle, optimized for excellent profile clearing and facing operations.
N (Clearance Angle): Uses 0-degree negative clearance inserts to handle higher impact and heavy-load machining.
L (Hand of Tool): A Left-Hand cutting tool profile.
16 (Insert Size): Specifically pocketed to hold standard VNMG 1604 style indexable carbide inserts (such as VNMG160404 or VNMG160408).
Structural Pairing Tip
Because this boring bar has a 25mm outer diameter shank, it can be mounted into your larger CNC turret stations using a standard reduction sleeve, similar to the Q50 16MMX100L sleeve model we looked at previously, but with a 25mm internal bore.