A “boring holder MCLNR” is a type of Lathe Tool Holder used for internal boring operations, with “MCLNR” specifying its design. It features a holder with a negative rake angle and a left-hand side cutting direction, a secure clamping mechanism for precision, and is built from high-strength, heat-treated steel for stability and shock resistance during machining.
MCLNR boring holder breakdown
Boring Holder: A tool used to enlarge or shape an existing hole in a workpiece, often on a lathe.
MCLNR: This code indicates specific design features:
M: The insert shape is often diamond-shaped (80°), denoted by “M”.
C: The insert clamp mechanism is often a C-clamp type.
L: This denotes a left-hand holder. For a left-hand tool, the main cutting edge is under the thumb when the left hand is placed on top of the tool, and it operates by feeding from right to left on the lathe.
N: This stands for a negative rake angle for the insert.
R: This stands for a right-hand tool insert.
Construction and features:
Made from high-strength steel for durability and vibration reduction.
Subjected to heat treatment for increased hardness.
Fitted with a precise and stable clamping mechanism to secure the tool and ensure accuracy.
Function:
Used for internal machining, hole enlargement, and creating internal contours.
Maintains high dimensional precision and surface finish.
