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Drill Bits(Coating Type:For High Hardness (Silicon Group))

Drill bits are a type of cutting tool to drill holes in work materials. They are used with machine tools such as drill press, lathe, milling machine and machining center. Drill bit materials include alloy carbide, high speed steel powder, high-speed steel, and some of them have coatings such as silicone-based, TiAlN-based, TiCN-based, TiN-based coatings, or surface treatment such as steam oxide treatment for enhanced oil retention on surface. Additionally, there is also a type of machining called thinning, given to the bit tip to reduce the thrust load applied to it when drilling. There are different shapes of thinning such as X-shape (for machining deep holes), R-shape (for machining stainless-steel-based workpieces) and S-shaped (for machining cast-iron- or non-ferrous-based workpieces); each one of them is used accordingly for different features and applications. In recent years, flat drill bits, which can drill holes without bending even on round surfaces, are attracting attention.

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Brand
Product Series
Days to Ship
Hole diameter (drill diameter) D(mm)
Overall Length L(mm)
Groove Length L(mm)
work material
Shank Type
Tool Material Type
With/without Oil Hole
Coating Y/N
Coating Type

    SEC-Multi Drill, SMDH-M, for 3D

      SEC-Multi Drill, SMDH-L, for 5D

        SEC-Multi Drill, SMDT-MEL Type

          SEC-Multi Drill, SMDH-B3 (for bridge)

            SEC-Multi Drill, SMDH-D, for 8D

              SEC-Multi Drill Head SMDT-MTL

                Super Multi-Drill External Refueling, GS-Model 2D-Type

                  Super Multi-Drill External Refueling, GS-Model 4D-Type

                    Super Multi-Drill Internal Refueling, HGS-Model 8D-Type

                      Super Multi-Drill Internal Refueling, HGS-Model 5D-Type

                      Brand

                      SUMITOMO ELECTRIC HARDMETAL

                      SUMITOMO ELECTRIC HARDMETAL

                      SUMITOMO ELECTRIC HARDMETAL

                      SUMITOMO ELECTRIC HARDMETAL

                      SUMITOMO ELECTRIC HARDMETAL

                      SUMITOMO ELECTRIC HARDMETAL

                      SUMITOMO ELECTRIC HARDMETAL

                      SUMITOMO ELECTRIC HARDMETAL

                      SUMITOMO ELECTRIC HARDMETAL

                      SUMITOMO ELECTRIC HARDMETAL

                      Product Series

                      SEC-Multi Drill, SMDH-M, for 3D

                      SEC-Multi Drill, SMDH-L, for 5D

                      SEC-Multi Drill, SMDT-MEL Type

                      SEC-Multi Drill, SMDH-B3 (for bridge)

                      SEC-Multi Drill, SMDH-D, for 8D

                      SEC-Multi Drill Head SMDT-MTL

                      Super Multi-Drill External Refueling, GS-Model 2D-Type

                      Super Multi-Drill External Refueling, GS-Model 4D-Type

                      Super Multi-Drill Internal Refueling, HGS-Model 8D-Type

                      Super Multi-Drill Internal Refueling, HGS-Model 5D-Type

                      Days to Ship 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more 4 Day(s) or more
                      Hole diameter (drill diameter) D(mm)12.5 or more, less than 13.0 ~ Over 39.5, and 41.0 or less12.0 or more, less than 12.5 ~ Over 41.0, and 42.5 or less19.5 ~ 2224.5~24.7 ~ 26.5~26.713.5 or more and 14.5 or less ~ Over 41.0, and 42.5 or less17 ~ 23.53 ~ 12.63 ~ 102.87
                      Overall Length L(mm)105 ~ 230130 ~ 335-170 ~ 175191.5 ~ 460-45 ~ 10049 ~ 10581109
                      Groove Length L(mm)44 ~ 13569 ~ 235-87 ~ 92124.5 ~ 360-13 ~ 4919 ~ 603356
                      work materialgeneral steel[○] / high hardness steel[○] / Stainless Steel[○] / Cast Iron[○] / Aluminum[○] / Titanium[○]general steel[○] / high hardness steel[○] / Stainless Steel[○] / Cast Iron[○] / Aluminum[○] / Titanium[○]general steel[◎] / high hardness steel[○] / Stainless Steel[◎] / Cast Iron[◎] / Aluminum[○]general steel[○]general steel[○] / high hardness steel[○] / Stainless Steel[○] / Cast Iron[○] / Aluminum[○] / Titanium[○]general steel[◎] / high hardness steel[○] / Stainless Steel[○] / Cast Iron[◎]general steel[◎] / Quenched and tempered steel[◎] / high hardness steel[○] / Stainless Steel[○] / Cast Iron[○]general steel[◎] / Quenched and tempered steel[◎] / high hardness steel[○] / Stainless Steel[○] / Cast Iron[○]general steel[◎] / Quenched and tempered steel[◎] / high hardness steel[○] / Stainless Steel[◎] / Cast Iron[○] / Titanium[◎]general steel[◎] / Quenched and tempered steel[◎] / high hardness steel[○] / Stainless Steel[◎] / Cast Iron[○] / Titanium[◎]
                      Shank Type------End Mill Shank / straight shankEnd Mill Shank / straight shankEnd Mill Shankstraight shank
                      Tool Material Type------CarbideCarbideCarbideCarbide
                      With/without Oil HoleAvailableAvailableAvailableAvailableAvailableAvailableNANAAvailableAvailable
                      Coating Y/NAvailableAvailableAvailableAvailableAvailableAvailableAvailableAvailableAvailableAvailable
                      Coating TypeFor High Hardness (Silicon Group)For High Hardness (Silicon Group)For High Hardness (Silicon Group)For High Hardness (Silicon Group)For High Hardness (Silicon Group)For High Hardness (Silicon Group)For High Hardness (Silicon Group)For High Hardness (Silicon Group)For High Hardness (Silicon Group)For High Hardness (Silicon Group)

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