SBN Finishing Series Screw-On Modular Heads & Modular Extensions

Screw-On Heads Fit Industry Standard Cutting Systems

  • Compatible with ISO standard modular systems
  • Close-tolerance mounting of heads minimizes runout and maximizes rigidity
  • Provide significantly more effective reach than solid end mills
  • Use standard inch wrench flats, no special metric wrenches needed
Screw-On Heads Fit Industry Standard Cutting Systems
Screw-On Modular Heads
Dia. Holder M A E Flutes Wrench CAD File
.500" SBNEM-0500-MOD M8 0.450" 1.06" 2 3/8" DXF
.750" SBNEM-0750-MOD M10 0.670" 1.25" 2 9/16" DXF
1.000" SBNEM-1000-MOD* M12 0.890" 1.63" 2 9/16" DXF

* Under production, check back for release information

** M8 modular extensions not available. Use ISO standard bars.
 

Dapra's Carbide Core Modular Extensions Are Ideal for Standard Inch End Mill Holders

Modular Head Extension
  • Cylindrical inch shanks, providing adaptation for end mill holders, milling chucks and heat-shrink holders
  • 3 sizes to accommodate modular head sizes from 3/4" to 1 1/2"
  • Carbide core for enhanced vibration dampening capability; reduced deflection and improved rigidity
  • Optional add-on extensions for additional 2" reach – screw on to base extensions (for 3/4" to 1 1/2" modular heads)
  • Thru-coolant for delivery of air or coolant right at the cutting edge
Carbide Core Modular Extensions
For Head Dia. Extension Part No. Shank Dia. Effective Length OAL Thread CC A CAD File
.750"/20mm CC-ME-0750-3500C-SS 0.750" 3.7" 5.77" M10 3/8" x 4.0" .660" DXF
.750"/20mm CC-ME-0750-3500C 1.000" 3.7" 6.0" M10 7/16" x 4.0" .660" DXF
1.000"/25mm CC-ME-1000-4500C 1.000" 4.7" 7.0" M12 7/16" x 5.0" .935" DXF
1.250"/1.500" CC-ME-1250-5500C 1.250" 5.7" 8.0" M16 1/2" x 6.0" 1.175" DXF

Extensions feature a cylindrical shank, with no Weldon flats. Hold with high-performance milling chucks or heat/mechanical shrink holders, or mill Weldon flats and use a short-length solid end mill holder.

2" Add-On Extensions
For Head Dia. Extension Part No. Effective Length Thread CAD File
.750"/20mm ME-0750-2"C EXTENSION ADAPTER 2.0" M10 DXF
1.000"/25mm ME-1000-2"C EXTENSION ADAPTER 2.0" M12 DXF
1.250"/1.500" ME-1250-2"C EXTENSION ADAPTER 2.0" M16 DXF
Dapra's Carbide Core Modular Extensions Are Ideal for Standard Inch End Mill Holders

Heavy Metal Modular Extensions Provide Even More Cutting Options

Ball Nose Modular Extension
  • Made of high-density tungsten, providing extra resistance to vibration and deflection
  • Machined on both ends; can be cut in half and used with two different modular heads
  • Metric shank diameter provides clearance for each inch size modular head
  • Thru-coolant equipped
Heavy Metal Modular Extensions
Modular Head Dia. Part No. OAL M
Mounting Thread
S
Shank Dia.
.750"/20mm ME-0750-18MM-900-C 9" M10 18mm
1.00"/25mm ME-1000-25MM-1100-C 11" M12 25mm
1.25"/1.500" ME-125/150-25MM-1200-C 12" M16 25mm

Heavy Metal Modular Extensions feature a cylindrical shank, with no Weldon Flats. Hold with high-performance metric milling chucks or heat/mechanical shrink holders, or mill Weldon Flats and use a short-length solid end mill holder.


 
 

Solid Carbide Modular Extensions

Dapra's NEW solid carbide modular extensions are ideal for use with modular heads during finishing applications. They feature:

  • Optimum rigidity for reduced deflection and chatter
  • No braze joints
  • Thru-coolant for delivery of air or coolant right at the cutting edge
Solid Carbide Modular Extensions
Solid Carbide Modular Extensions
For Head Dia. Extension Part No. Shank Dia. Effective Length OAL Thread A
.500" SC-ME-0500-6500-C .500" 1.500" 6.5" M8 .460"
.750" SC-ME-0750-7700-C .750" 2.250" 7.7" M10 .709"
1.000" SC-ME-1000-8300-C 1.000" 5.000" 8.3" M12 .890"/.950"

Caution: Solid carbide modular extensions are best suited for finishing and semi-finishing applications. They are not generally recommended for roughing applications due to carbide rigidity.