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Precision Rotary Broach – R8 Shank (7/16" UNF) with HSS Hex Punches – CNC, Lathe, Milling & Drilling Compatible (Imperial)

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US$254.40 cheaper than the new price!!

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Used  US$169.60
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Product details

Management number 228347006 Release Date 2026/05/31 List Price US$169.60 Model Number 228347006
Category
  • R8 Precision Rotary Broach Holder – Heavy-duty R8 Shank Rotary Broach With 7/16" UNF Drawbar Thread, Designed For Accurate Internal Hex Broaching On CNC, Lathe, Milling, And Drilling Machines.
  • Imperial HSS Hex Punch Set Included – Supplied With High-speed Steel (HSS) Hex Broach Punches (Imperial Sizes) For Clean And Precise Internal Hex Profiles In A Single Pass.
  • Floating / Self-centering Broaching Action – Advanced Rotary Broaching Design Ensures Excellent Concentricity, Reduced Cutting Pressure, Minimal Chatter, And Superior Surface Finish.
  • Wide Machine Compatibility – Ideal For CNC Machining Centers, Manual Lathes, Milling Machines, Drill Presses, And VMCs Using R8 Spindle Systems.
  • Industrial-grade Construction – Precision-machined Hardened Alloy Steel Body With Quality Bearings For Vibration Control, Durability, And Long-term Reliability.
  • 1️⃣ Advanced Self-Centering Wobble Mechanism – Enables controlled axial movement, ensuring smooth, precise, and chatter-free cutting for superior broaching results.
  • 2️⃣ Optimal Pre-Drilling Guide – For best results, pre-drill holes slightly larger than the broach size: Square broaches require a 10% larger hole, while Hex broaches perform best with a 3% larger hole, ensuring smooth cutting and extended tool life.
  • 3️⃣ Alternative Drilling Method – If pre-drilling a larger hole isn't feasible, drill to the exact broach size and incorporate a 45° lead-in chamfer. This reduces cutting resistance, enhances tool life, and ensures a smoother broaching process.
  • 4️⃣ Apply Lubrication for Optimal Performance – Minimizes friction, dissipates heat, and enhances cutting efficiency, resulting in smoother operation, reduced tool wear, and extended tool life.
  • 5️⃣ Precision Cutting Process – Reduces cutting resistance, enhances accuracy, and ensures a seamless broaching experience with clean and precise results.
ASIN B0DYJCW7DF
Size R8 Shank (7/16" UNF) Hex Imperial
Item Weight 3.3 pounds
Part Number ASS-RB-34-H7
Manufacturer Assort Machine Tools Co.
Item model number ASS-RB-34-H7
Batteries Included No
Batteries Required No
Product Dimensions 9.45 x 7.48 x 2.36 inches
Included Components As advertised
Item Package Quantity 1

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