close
Choose Your Site
Global
Social Media
DIN6343 173E 185E F48 F66 Clamping Collet
DIN6343 clamping collet is a type of dead length collet, including differen hole types, round hole collet, square collet, hex collet
The DIN 6343 Clamping Collet (often referred to as a dead-length collet or F-type collet) is the standard workholding solution for single and multi-spindle automatic lathes, CNC turning centers, and rotary transfer machines. Unlike draw-in collets that pull the workpiece slightly backward as they close, dead-length collets are pushed forward against a stationary cap. This design ensures absolute axial stability, meaning the workpiece length remains perfectly consistent from part to part, which is critical for high-volume precision turning, facing, and parting-off operations.
Dead-Length Precision: The push-to-close mechanism guarantees zero axial movement of the workpiece during clamping, ensuring exact part lengths and precise facing tolerances.
Premium Spring Steel: Manufactured from high-grade alloy spring steel (such as 65Mn or SUJ2) and heat-treated for optimal elasticity and a long flex life, enduring millions of rapid clamping cycles.
High Clamping Force: The optimized taper angle provides massive radial gripping force, preventing bar stock from slipping or pushing back even during heavy roughing cuts.
Multiple Bore Profiles: Available in Round, Hexagon, and Square bore shapes to perfectly accommodate various raw material profiles.
Customized Gripping Surfaces: Choose from smooth bores (for delicate or pre-machined parts), grooved bores (for standard cold-drawn steel), or aggressively serrated bores (for maximum bite on hot-rolled or scaly raw bar stock).
Direct Manufacturer Savings: Bypass trading companies and source these essential turning consumables directly from our factory for highly competitive wholesale pricing.
Comprehensive Standard Range: We manufacture the complete DIN 6343 range, including 138E (F32), 148E (F38), 161E (F42), 173E (F48), and 185E (F66), covering all major machine brands (Index, Traub, Schaublin, Citizen, etc.).
Strict Quality Control: Every collet is rigorously inspected for runout accuracy, dimensional tolerance, and taper angle precision before packaging.
OEM & Customization: We offer custom bore sizes (including exact decimal and imperial sizes), special profiles, and custom laser engraving of your brand logo.
Q1: What is the difference between 173E and F48?
A: They are the exact same collet. "173E" is the Schaublin/European standard designation, while "F48" is the nominal taper diameter designation commonly used in the industry. Both refer to a DIN 6343 collet with a 48mm taper diameter and a 60mm overall length. Similarly, 185E is the exact same as F66.
Q2: Why choose a dead-length collet over a standard ER collet for a lathe?
A: ER collets are excellent for holding cutting tools, but they pull backward slightly as the nut is tightened. For bar feeding and turning operations where the overall length of the machined part must be strictly controlled, a dead-length (DIN 6343) collet is required because it pushes forward against a fixed stop, ensuring the bar stock does not move axially during clamping.
Q3: Should I choose a smooth, grooved, or serrated bore?
A: It depends entirely on your workpiece material:
Smooth Bores: Used for soft materials (brass, aluminum, plastics) or previously machined surfaces to prevent scratching and marring.
Grooved Bores: Offer better grip for general cold-drawn steel and standard bar stock.
Serrated Bores: Have aggressive teeth and are used for hot-rolled, forged, or scaly raw bar stock where maximum bite is needed to prevent push-back during heavy turning.
Q4: Can you manufacture custom bore sizes or shapes?
A: Yes! While we stock all standard metric and imperial fractional sizes, we can manufacture custom decimal bore sizes, stepped bores, or special profiles (like D-shapes, rectangular, or custom extrusions) to perfectly match your specific raw materials.
Ensure absolute precision and maximum grip for your automated turning operations with our DIN 6343 Clamping Collets.
Contact our sales team today for a complete catalog and bulk pricing.
