Keyless quick-action drill chucks SUPRA-SK
 SUPRA-SK


Clamp capacity: 0.5 - 13 mm
Mount: B 12/16
    1/2“-20
    3/8“-24



APPLICATION
For extreme use on hand-operated percussion drills and
drills up to 1300 watt with mounting thread and conical mount.

TYPE
Impact-resistant and self-clamping flat jaw drill chuck.
Also suitable for counterclockwise rotation by radial locking.

CUSTOMER BENEFITS
• Concentricity of up to 0.25 mm
• Increase in the clamping force proportional to the cutting
  force by the automatic reclamping function and no releasing
  in counterclockwise rotation
• Impact-resistant by radial locking for universal use

TECHNICAL FEATURES
- Strong retaining ring
- Hardened and superfinished
- Suitable for counterclockwise rotation up to maximal 15 Nm
- For machines without spindle stop
- Radial locking
- Automatic retightening


A02
SUPRA-SK for hand-operated percussion drills and drills

 Item No.  Size  Type  Clamping
 capacity
 mm		  Mount   Concentricity
 deviation
 max. mm		  External  Ø
 mm		  Length
 opened
 mm		  Length
 closed
 mm		  Weight
 g
 249910  10  S  0.5-10  3/8“-24  0.3  40  66  73.7  428
 305188  10  S  0.5-10  B 12  0.25  40  68  75.7  416
 249804  13  S  1-13  1/2“-20  0.3  42.8  74.2  83.3  537
 305221  13  S  1-13  B 12  0.25  42.8  77  86.1  575
 3052031)  13  S  1-13  B 16  0.25  42.8  80.2  89.3  585
1) Shortened: B16 by 2.5 mm





We reserve the right to make technical changes.