Seco A12N-SDUCL07 Internal Turning Toolholder

• 12 machine-side shank connection — fits standard turret and tool-block fitments without special adaptors
• 11 mm x 11.5 mm shank with 160 mm functional length for the specified reach and rigidity
• Accepts D-shape Seco inserts using the S clamping system for secure, repeatable insert location
• Left-hand cut geometry at 93° tool cutting edge angle for the specified turning operation

Seco Internal Turning Toolholders and Boring Bars (steel and heavy metal shanks, screw lock and clamp lock, various bore diameters and overhang lengths) are precision tools for CNC lathe ID boring, facing, and internal profiling on production and job shop turning centres.

General Engineering and Job Shops

• Internal boring bar supply for CNC lathe ID turning and bore finishing operations
• Screw lock boring bar supply for general engineering internal turning and profiling
• Steel and heavy metal boring bar supply for small to large bore ID turning on CNC lathes
• Seco boring bar replacement supply for job shop and contract machining

Automotive Manufacturing

• Internal toolholder supply for boring engine block, housing, and hub bore turning on CNC lathes
• Boring bar supply for high-volume automotive ID turning of steel and cast iron components
• CNC lathe internal toolholder supply for automotive bore finishing and profiling

Aerospace and Precision Engineering

• Heavy metal boring bar supply for chatter-free deep bore turning of aerospace components
• Internal toolholder supply for precision ID turning of titanium and nickel alloy aero parts
• Long overhang boring bar supply for deep bore machining of aerospace housings and tubes

Mould and Die

• Internal boring bar supply for mould cavity and die bore turning on CNC lathes
• Boring bar supply for hard turning and finish boring of hardened tool steel components
• Precision boring bar supply for tight tolerance ID machining in mould and die shops

• Shank Connection: 12
• Shank Dimensions: 11 mm x 11.5 mm
• Functional Length (mm): 160
• Insert Shape Accepted: D
• Clamping System: S
• Hand: Left
• Cutting Edge Angle (deg): 93