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HOME >> Watchmakers Lathes >> 8mm Collets

8mm Collet Set [C8CS26]


130

Set of 26 collets to fit 8mm watchmaker's lathes

Country of origin: China

Sizes:

Φ0.3mm, Φ0.5mm, Φ0.8mm, Φ1.0mm, Φ1.2mm, Φ1.5mm, Φ1.8mm,
Φ2.0mm, Φ2.2mm, Φ2.5mm, Φ2.8mm, Φ3.0mm, Φ3.2mm, Φ3.5mm,
Φ3.8mm, Φ4.0mm, Φ4.2mm, Φ4.5mm, Φ4.8mm, Φ5.0mm, Φ5.2mm,


Φ5.5mm, Φ5.8mm, Φ6.0mm, Φ6.2mm, Φ6.5mm

Collet Dimensions


Body diameter (A): 7.98 mm

Head diameter (B): 13.0 mm

Length (C): 35 mm

Thread (D): M7 x 0.75

Head Angle: 20

The dimensions of these collets are similar to those used by many European manufacturers including Schaublin, Bergeon & Wolf Jahn except that the drawbar thread is a coarser pitch. The standard thread pitches for 8mm Horological collets are 0.635 mm (40 tpi) and 0.625 mm. Drawbars manufacture is made easy as taps for M7 x 0.75 are readily available - they can also be purchased ready made.

Condition: Unused - 24 still sealed in manufacturers wrapping

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