Product Overview

For machinists who demand the highest level of accuracy and flexibility on their manual or CNC lathes, the traditional four-way tool post or even standard wedge-style quick-change systems often fall short. The 40-Position (Multifix Style) Quick Change Tool Post represents the pinnacle of lathe workholding. The core of the system is the central block, which features 40 precision-ground vertical splines (teeth). The tool holders feature corresponding internal splines. When clamped together via the eccentric cam mechanism, the holder is drawn rigidly against the block, creating a massive surface area of contact. This spline engagement not only provides incredible holding power for heavy roughing but also allows you to instantly rotate a tool to any of 40 angles (in 9° increments) to cut chamfers, tapers, or clear the tailstock without ever losing your zero point.

Key Features & Advantages

• 40 Indexable Positions: The splined design allows you to mount the tool holder at 40 different angles (every 9°). This eliminates the need to loosen the main center bolt to rotate the entire tool post for angled turning or facing operations.

• 0.01mm Repeatability: The precision-ground splines guarantee that when you remove a tool holder and put it back on, the cutting edge returns to the exact same position within 0.01mm (0.0004"). This makes tool changes during a complex part run incredibly fast and accurate.

• Height Adjustment Screw: Every tool holder features a knurled thumb nut and stop screw. Once you set the tool's center height perfectly, it stays locked. You never have to use shims again.

• Extreme Rigidity: The clamping mechanism pulls the holder tightly against the splined central block, creating a solid, vibration-free connection that excels in heavy interrupted cuts, parting off, and threading.

• Premium Hardened Steel: The main block and all tool holders are forged from high-quality alloy steel, case-hardened, and precision-ground to ensure lifelong accuracy and resistance to wear.

• Complete Kits Available: We offer complete sets that include the main tool post body, a wrench, and a selection of standard turning, boring, and parting tool holders to get you started immediately.

Why Partner with Pingyuan Zhenghao Machinery?

• Direct Manufacturer Savings: Bypass trading companies and source premium European-style lathe tooling directly from our factory for highly competitive wholesale pricing.

• Comprehensive Size Range: We manufacture the full spectrum of 40-position sizes to fit any lathe swing:

• Size Aa: For small benchtop/hobby lathes (Swing ~120-220mm)

• Size A: For light-duty lathes (Swing ~150-300mm)

• Size E: For medium-duty lathes (Swing ~200-400mm)

• Size B: For standard industrial lathes (Swing ~300-500mm)

• Size C: For heavy-duty lathes (Swing ~400-700mm)

• Wide Variety of Holders: We stock all standard holder types, including square shank turning (Type D), round boring bar (Type B), parting blade (Type A), and Morse Taper (Type T) holders.

• Strict Quality Control: Every tool post block and holder is rigorously inspected for spline profile accuracy, hardness, and clamping repeatability before packaging.

Frequently Asked Questions (FAQ) - Selection Guide

Q1: How do I choose the correct size (Aa, A, E, B, C) for my lathe?

A: The correct size depends primarily on two factors: your lathe's Swing Over Bed (the maximum diameter part it can turn) and the Center Height (the distance from the top of the compound rest to the spindle center line). Please consult our sizing chart or provide these two measurements to our sales team, and we will recommend the perfect size for your machine.

Q2: Is the 40-Position system better than a Wedge-Style (Aloris/Dorian type) tool post?

A: Both are excellent systems, but they serve different preferences. Wedge-style posts are very fast and popular in North America. The 40-Position (Multifix) style is preferred in Europe and by precision toolmakers because the spline engagement offers superior repeatability (0.01mm vs. typical 0.02mm for wedge), slightly better rigidity, and the unique ability to index the tool at 9-degree angles without moving the main block.

Q3: Will these tool holders fit my original Swiss/German Multifix tool post?

A: Yes. Our 40-Position tool posts and holders are manufactured to the exact international standard dimensions of the original European Multifix design. Our holders will fit your original block, and our block will accept your original holders.

Q4: Do I need to machine my lathe to install this?

A: The tool post mounts via a central T-nut that slides into the T-slot on your lathe's compound rest. We provide a blank T-nut (machinable base plate) with the kit. You will need to mill or machine this blank T-nut to fit the specific dimensions of your lathe's compound T-slot.

Experience the ultimate in lathe precision, rigidity, and rapid tool changes with our 40-Position Quick Change Tool Post Systems.

Contact our sales team today for a complete catalog, sizing assistance, and bulk pricing.