Metric Toroid Cutting Tools

Toroid Metric Cutting Tools & Inserts

Dapra Corporation is now offering a series of high-performance METRIC SERIES Toroid Cutters and Inserts in the most commonly used sizes and styles. Contact Dapra today for pricing on these metric sizes. Click here for our standard Toroid product line.

Metric Toroid End Mills

32mm shank dia. cutters and smaller are available in limited supply without Weldon Flats. Add WOF to the end of the part number when ordering.


Metric Toroid End Mill
Metric End Mills ("C" designates a thru-coolant tool)
OD
Dia.		 Holder R
Effective Length		 L
Overall Length		 S
Shank Dia.		 Flutes Insert
20mm TREM20-50-R5-2† 50mm 103mm 20mm 2 RDCH10
20mm TREM20-75-R5-2C† 75mm 128mm 20mm 2 RDCH10
25mm TREM25-65-R5-2C† 65mm 121mm 25mm 2 RDCH10
25mm TREM25-65-R5-3† 65mm 121mm 25mm 3 RDCH10
25mm TREM25-115-R5-3† 115mm 171mm 25mm 3 RDCH10
25mm TREM25-65-R6-2 65mm 121mm 25mm 2 RDCH12
25mm TREM25-115-R6-2 115mm 171mm 25mm 2 RDCH12
32mm TREM32-75-R6-2 75mm 133mm 32mm 2 RDCH12
32mm TREM32-130-R6-2 130mm 184mm 32mm 2 RDCH12

† Does not come with top clamps.


Metric Toroid Shell Mills

Metric Toroid Shell Mills
Metric Shell Mills
OD
Dia.		 Holder R
Effective Length		 B
Arbor Dia.		 H
Counter Bore Dia.		 Flutes Mounting Screw Insert
50mm TRSM50-22-R6-4 38mm 22mm 10.4mm 4 M10 RDCH12
63mm TRSM63-27-R6-5 50mm 27mm 12.4mm 5 M12 RDCH12
80mm TRSM80-27-R6-6 50mm 27mm 12.4mm 6 M12 RDCH12

Metric Screw-On Modular Heads & Modular Extensions

Dapra's Line of Screw-On Heads Fits Industry Standard Cutting Systems

Metric Screw-On Tool Head
  • Compatible with ISO standard modular cutting systems
  • Greater effective reach than solid end mills
  • Close-tolerance mounting minimizes runout
  • Wrench flats accept adjustable wrenches – no special wrenches needed
Metric Toroid Screw-On Heads
Dia. Holder M E IC Flutes Insert
20mm TREM20-MOD-R5-2C† M10 38mm 10mm 2 RDCH10
25mm TREM25-MOD-R5-2C† M12 38mm 10mm 2 RDCH10

† Does not come with top clamps.


Dapra's Modular Extensions Provide Even More Cutting Options

Toroid 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
  • Shank diameters either match or are undersize compared to cutting diameters
Heavy Metal Metric Modular Extensions
Modular Head Dia. Part No. OAL M
Mounting Thread		 S
Shank Dia.
20mm ME-0750-18MM-900 230mm M10 18mm
25mm ME-1000-25MM-1100 280mm M12 25mm

Metric Toroid Cutter Inserts, CNC-Pressed

T-Land Cutting Edge "T" inserts have a reinforced cutting edge for steels, irons and hard milling.
Dished Cutting Edge "D" inserts have a high-positive cutting edge for stainless steels, high-temperature alloys and gummy materials.
Metric Toroid Inserts
Metric Toroid Insert
Metric Toroid Inserts
Insert Insert Diameter Uncoated Coated
Pressed to Size DMK30
DMP25
DMK15		 DMK30-HP
DMP25-HP
DMK15-HP		 DMK307
DMP257
DMK157		 DMK30-GLH
DMP25-GLH
DMK15-GLH
RDCH-10-T 10mm • • • •
RDCH-10-D 10mm • • • •
RDCH-12-T 12mm • • • •
RDCH-12-D 12mm • • • •

Toroid Insert Grade Selection
Shock & Wear Resistance Uncoated (Base Grade) with Coating Description Specifications
TOUGHEST
Shock Resistance		 DMK30 Moderate wear resistance/high shock resistance. Recommended for interrupted or unstable steel, most 300 series stainless steel, high-temperature alloys and cast iron applications. ANSI C1-C2, ISO K25-K40, M25-M35
DMK303 PVD TiCN coating. Excellent wear resistance for low-to-medium operating temperatures.
DMK30-HP High-performance medium-temperature grade. Optimum performance and wear resistance in most soft steels, soft stainless steels and cast irons.
DMK307 PVD AlTiN coating. For higher-temperature applications including tougher stainless steels, high-temperature alloys and soft tool steels.
DMK30-GLH Premium high-temperature coating. Best resistance to heat for high-shock applications. Excellent for tough stainless steels, high-temperature alloys and soft tool steels.
MEDIUM
Shock and Wear		 DMP25 High wear resistance/moderate shock resistance, recommended for most steel and 400 series stainless steel applications. ANSI C5-C6, ISO P25-P40
DMP253 PVD TiCN coating. Excellent wear resistance for low-to-medium operating temperatures.
DMP25-HP High-performance medium-temperature grade. Optimum performance and wear resistance in most soft steels, soft stainless steels and cast irons.
DMP257 PVD AlTiN coating. For higher-temperature applications including high-speed machining and heat-treated materials < 44 Rc.
DMP25-GLH Premium high-temperature grade. Unbeatable performance and wear resistance in high-heat applications such as higher speed machining in steels (<44 Rc) and ductile irons.
HARDEST
Wear Resistance		 DMK15 Highest wear resistance with reduced shock absorption capabilities. Micro-grain carbide provides excellent edge strength for abrasive applications in nonferrous materials. Suitable for castings, aluminum and smoother cuts in tough stainless steels, high-temperature alloys and hardened steel. ANSI C2-C3, ISO K15-K25, M15-M25
DMK153 PVD TiCN coating. Excellent wear resistance for low-to-medium operating temperatures. Good resistance to built-up edge for aluminum machining.
DMK15-HP High-performance medium-temperature grade. Optimum performance and wear resistance in most soft steels, soft stainless steels and cast irons.
DMK157 PVD AlTiN coating. Appropriate for higher-temperature applications such as high-velocity cast iron machining, tough stainless steels, high-temperature alloys and hardened steel.
DMK15-GLH Premium high-temperature grade. Unbeatable performance and wear resistance in high-heat applications such as harder steels, tough stainless steels and high-temperature alloys.

DMK30-HP is a good first choice for most applications. Additional coatings available on request. Contact Dapra for details.

† DMK25 substrate is available for RHINO-CARB D and N geometries only.

Metric Toroid Spare Parts & Tools

Metric Toroid Spare Parts and Tools
Metric Spare Parts & Tools
Metric Toroid Mill Insert Screw Top Clamp Screw Top Clamps Wrench Torque (nM) Anti-Seize Grease
TREM20... TRS-3 N/A N/A T-8F 1.5 - 1.7 ASG-120
TREM25...R5... TRS-3 N/A N/A T-8F 1.5 - 1.7 ASG-120
TREM25...R6... TRS-4 TRS-4L TC-4 T-15F 3.5 - 4.0 ASG-120
TREM32... TRS-4 TRS-4L TC-4 T-15F 3.5 - 4.0 ASG-120
TRSM50-22-R6-4 TRS-4 TRS-4L TC-4 T-15F 3.5 - 4.0 ASG-120
TRSM63-27-R6-5 TRS-4 TRS-4L TC-4 T-15F 3.5 - 4.0 ASG-120
TRSM80-27-R6-6 TRS-4 TRS-4L TC-4 T-15F 3.5 - 4.0 ASG-120

Dapra Toroid products are made in the USA.