- Catalogs
- Dapra Milling Solutions
- Single-Sided Toroid Series
Single-Sided Toroid Series
Single-Sided Toroid Series
The document outlines detailed specifications for cutting inserts and modular heads, including dimensions, thread sizes, and effective lengths. Notably, OPMH-644 inserts have a maximum depth of cut (DOC) of 0.200 inches. It also lists available grades and notes some items as closeout or out of stock.
- T Inserts: Reinforced cutting edge for steels, irons, and hard milling.
- N Inserts: Suitable for high-performance milling of steels, irons, and 400-series stainless steels.
- D Inserts: High-positive cutting edge for stainless steels, high-temperature alloys, and gummy materials.
Screw-on modular heads are compatible with ISO standard systems, offering close-tolerance mounting to minimize runout and maximize rigidity. They provide more effective reach than solid end mills and use standard inch wrench flats.
Includes spare parts such as insert screws and wrenches, with recommended torque specifications for both inch and metric products.
- Best suited for "Z-level" roughing.
- Ramping is recommended over plunging.
- Maintain at least 75% cutter diameter engagement for optimal performance.
- Use high speeds and feeds with light DOC for round inserts.
Solutions for common issues like insert wear, chipping, and poor finish, suggesting adjustments in speed, feed, and DOC, and using appropriate coatings and tool holders.
- Use anti-seize compound on screws.
- Change insert screws every 10 inserts.
- Clean pockets and screws at each insert change.
Charts for adjusting feed rates to compensate for chip thinning, ensuring optimal metal removal rates and tool life.
Describes using Toroid cutters for larger diameter hole making through helical interpolation, allowing for efficient material removal and varied hole sizes.
Detailed descriptions of various insert grades, highlighting their shock and wear resistance, suitable applications, and recommended coatings.
Recommended cutting speeds and feeds for different materials and applications to optimize performance.
The document provides detailed specifications and recommendations for machining various materials using different tool steels and modular extensions, including guidelines for dry machining, recommended coatings, and torque wrench systems.
Categorizes materials into high-alloy steels, tool steels, cast irons, aluminum alloys, copper alloys, high-temperature alloys, titanium, and plastics, with specific machining parameters such as speed and feed rates.
- DMK30 series tools are recommended for high-alloy steels and tool steels, with specific speed and feed ranges provided for each material type.
- DMK25 and DMP25 series tools are suitable for medium shock resistance and wear resistance applications, with detailed parameters for different materials.
- DMK15 series tools are designed for the hardest wear resistance, with specific recommendations for finishing operations.
- -TCI coating is best for low to medium speeds and softer materials.
- -GLH and -HM coatings are suited for high speeds and harder materials.
- Universal modular extensions can be used with various modular heads, offering enhanced vibration dampening and rigidity.
- Available in different sizes to accommodate head sizes from 3/4” to 1-1/2”.
- Thru-coolant feature for efficient delivery of air or coolant.
- Provides precise tightening without binding or stripping screws.
- Features color-coded adapters and bits for easy identification and accurate torque application.
- Available in straight-handle and T-handle styles.
The document serves as a comprehensive guide for selecting the appropriate tools and parameters for machining various materials, emphasizing the importance of starting with recommended settings and adjusting for optimal performance.
Catalog excerpts
TOROID / BUTTON CUTTERS Single-Sided Toroid Series High-performance Toroid cutters are available with standard ground or CNC-pressed RHINO-CARB™ single-sided inserts. Pressed Toroid Inserts (old versions for comparison) Dapra’s RHINO-CARB high-performance inserts are designed for very aggressive metal cutting and long tool life. SINGLE-SIDED “T” inserts have a strong, negative reinforced cutting edge for steels, irons and hard milling. S tronger cutting edge for heavier chiploads, greater shock absorption and longer tool life (old Left to right: T, N, D versions for comparison) P ositive top rake for reduced cutting forces and lower torque Fancier “cutaway” style “D” inserts have a high-positive cutting edge for stainless steels, high-temperature alloys and gummy materials. Thicker inserts for greater strength and enhanced heat absorption capabilities Left to right: T, N, D Fancier “cutaway” style “N” inserts are more positive than the “T” edge, but stronger than “D.” Fancier “cutaway” style Our Toroid series includes TWO high-performance inserts to maximize the versatility of your Toroid cutting tools: Match the insert R value to the designation on your cutter body. Each R value = 1/8” of insert dia. Button Inserts RPMH RDCH & RXCH Octagonal Inserts
Open the catalog to page 1
Round inserts have a strong cutting edge, making them an excellent choice for many applications, including: • Pocketing • Semi-finishing • Face milling • old cavity and core roughing M • Roughing of complex part contours • Helical interpolation (larger diameter hole making) TOROID / BUTTON CUTTERS See chart on page 72 for technical help on optimum feeds for button inserts. 8-sided geometry is excellent for general face milling. 45˚ lead angle provides increased feed capacity for: • Face milling • Profiling • Helical interpolation • Chamfering Each of the 8 usable edges comes with an integral...
Open the catalog to page 2
TOROID / BUTTON CUTTERS R3 3/8” IC Insert Cutter Bodies 1.250” shank dia. cutters and smaller are available in limited supply without Weldon Flats. Add WOF to the end of the part number when ordering. Effective Length Overall Length Match to pg. 59 insert color “C” denotes coolant-thru tool. R3 3/8” IC CARBIDE CORE END MILLS EDP Effective Length Overall Length Match to pg. 59 insert color
Open the catalog to page 3
“T” INSERTS Reinforced cutting edge for steels, irons and hard milling. Button Inserts Insert Edge Type Positive (sharper) Available Coated Grades (EDP) T-land (stronger) “D” INSERTS High-positive cutting edge for stainless steels, hightemperature alloys and gummy materials. T TOROID / BUTTON CUTTERS Sharpest T-land (stronger) Closeout item. Available while supplies last. SEE PG. 74 FOR INSERT GRADE DESCRIPTIONS Other grades available upon request. See chart on page 72 for technical help on optimum feeds for button inserts. See page 75 for recommended speeds/feeds.
Open the catalog to page 4
TOROID / BUTTON CUTTERS R4 1/2” IC Insert Cutter Bodies 1.250” shank dia. cutters and smaller are available in limited supply without Weldon Flats. Add WOF to the end of the part number when ordering. Effective Length Overall Length Match to pg. 61 insert color “C” denotes coolant-thru tool. * Does not have thru-tool coolant. R4 1/2” IC CARBIDE CORE END MILLS EDP Effective Length Overall Length Match to pg. 61 insert color Effective Length Match to pg. 61 insert color
Open the catalog to page 5
“N” INSERTS For typical cutting applications where high-performance milling of steels, irons and 400-series stainless is desired. “T” INSERTS Reinforced cutting edge for steels, irons and hard milling. Button Inserts Insert Edge Type Available Coated Grades (EDP) T-land (Stronger) “D” INSERTS High-positive cutting edge for stainless steels, hightemperature alloys and gummy materials. TOROID / BUTTON CUTTERS Sharpest T-land (Stronger) DMK25 substrate is available for RHINO-CARB D and N geometries only. ‡ Closeout item. Available while supplies last. DMK30 and DMK15 are out of stock. Octagonal...
Open the catalog to page 6
TOROID / BUTTON CUTTERS R5 5/8” IC Insert Cutter Bodies R5 End Mills S Effective Length Overall Length Match to pg. 63 insert color “C” denotes coolant-thru tool. R5 5/8” IC CARBIDE CORE END MILLS EDP 80490 Effective Length Overall Length Match to pg. 63 insert color Effective Length Match to pg. 63 insert color
Open the catalog to page 7
“D” INSERTS High-positive cutting edge for stainless steels, hightemperature alloys and gummy materials. D “N” INSERTS For typical cutting applications where high-performance milling of steels, irons and 400-series stainless is desired. “T” INSERTS Reinforced cutting edge for steels, irons and hard milling. Button Inserts Insert Edge Type Available Coated Grades (EDP) TOROID / BUTTON CUTTERS DMK25 substrate is available for RHINO-CARB D and N geometries only. Octagonal Inserts Insert Edge Type Available Coated Grades (EDP) OPMH-544 inserts have a maximum DOC of .165”. SEE PG. 74 FOR INSERT GRADE...
Open the catalog to page 8
TOROID / BUTTON CUTTERS R6 3/4” IC Insert Cutter Bodies R6 End Mills S Effective Length Overall Length Match to pg. 65 insert color “C” denotes coolant-thru tool. R6 3/4” IC CARBIDE CORE END MILLS EDP 80505 Effective Length Overall Length Match to pg. 65 insert color Effective Length Match to pg. 65 insert color Button Button Octagonal Octagonal
Open the catalog to page 9
“N” INSERTS For typical cutting applications where high-performance milling of steels, irons and 400-series stainless is desired. “T” INSERTS Reinforced cutting edge for steels, irons and hard milling. Button Inserts Insert Edge Type Available Coated Grades (EDP) Edge Type Available Coated Grades (EDP) “D” INSERTS High-positive cutting edge for stainless steels, hightemperature alloys and gummy materials. TOROID / BUTTON CUTTERS Octagonal Inserts Insert Sharpest T-land (stronger) OPMH-644 inserts have a maximum DOC of .200”. ‡ Closeout item. Available while supplies last. DMK30 and DMP25 are...
Open the catalog to page 10All Dapra Milling Solutions catalogs and technical brochures
High Feed Indexable Milling12 Pages
EXTREMEMetal Removal25 Pages
