ASSORTS MT-2 Shank Rotary Broach Holder with ER20 Adapter & 7-Piece HEX Broach Set (3–12mm) for CNC Lathe, Milling Machine, Precision Internal Hex Cutting Tools

The Assorts MT-2 Shank Rotary Broach Holder With ER20 Adapter & 7-piece Hex Broach Set (3–12mm) Is A Complete Precision Broaching Solution Engineered For CNC Lathes, Vertical/horizontal Milling Machines And Drill Presses. Built For Machinists Who Demand High-accuracy Internal Hex Cuts, This Rotary Broaching Kit Combines A Robust MT-2 Taper Shank Holder With A Versatile ER20 Collet Adapter And A Set Of 7 Internal Hex Broaches Ranging From 3mm To 12mm. Featuring High-speed Steel (HSS) Or Alloy Construction, The Hex Broaches Are Precision Ground For Excellent Edge Retention, Wear Resistance And Superior Cutting Performance. Together With The MT-2 Shank And ER20 Adapter, This Broach Set Provides Rigid, Concentric Mounting In CNC Spindles, Milling Machine Tool Holders And Manual Setups, Ensuring Minimal Run-out And Consistent Part Quality. Rotary Broaching Is The Preferred Method For Producing Internal Hexagon Profiles, Sockets, Fastener Seats, And Precision Components With Tight Tolerances In A Single Pass. Unlike Conventional Broaching Or EDM, Rotary Broach Tooling Reduces Cycle Times, Eliminates Secondary Operations And Simplifies Tool Changes — Making It Ideal For Mass Production, Job Shops And Prototyping Environments. Whether You’re Cutting Internal Hex Holes In Mild Steel, Aluminum, Brass Or Other Non-ferrous Metals, This Kit Delivers Professional-grade Results With Excellent Surface Finish And Repeatability. Expand Your Machining Capabilities With This Essential CNC Machining Accessory, Rotary Broach Tooling Kit.

• Complete Rotary Broaching Kit For CNC & Milling Machines – Includes MT-2 Taper Shank Rotary Broach Holder With ER20 Adapter And A Precision 7-piece Hex Broach Set (3–12mm) For Accurate Internal Hexagon Machining.
• Wide Hex Broach Size Range (3mm–12mm) – 7 Sizes Cover Common Hex Profiles For Fast, Precise Production Of Internal Hex Holes And Sockets In A Variety Of Materials.
• Cutting Tools (HSS/alloy) – Broaches Made From Durable High-speed Steel Or Alloy Tool Steel For Long Life, Edge Retention And Consistent Accuracy Across Multiple Workpieces.
• ER20 Adapter For Rigid Spindle Mounting – ER20 Collet Arbor Allows Secure Installation In Milling Machines, CNC Spindles, Drill Presses And Tooling Fixtures With Low Run-out.
• MT2 Morse Taper Shank For Versatile Setup – MT-2 Taper Shank Fits Directly Into Lathes, Mills And Milling Attachments, Offering Rigid, Concentric Performance.
• Precision Internal Hex Cutting Performance – Rotary Broaching Cuts Clean, Accurate Internal Hexagon Profiles In One Pass — Ideal For Sockets, Fastener Interfaces, Precision Parts And Prototype Work.
• ⚙️ This rotary broach does not have the wobble feature; therefore, follow the steps mentioned below for effective broaching.
• 📐 Offset the tailstock by 1 to 1.5 degrees for proper alignment during broaching.
• 🛠️ Pre-drill holes larger than the broach size: 10% larger for square broaches and 3% larger for hex broaches.
• 🌀 Alternatively, if pre-drilling a larger hole is not possible, pre-drill the hole to match the exact size of the broach and add a 45-degree lead-in chamfer. This will guide the broach smoothly into the workpiece and ensure effective broaching.