Long Shank Type (L2D Type) for flat base drilling, hole expansion, and burr prevention in long overhang conditions!
●For drilling with long overhang and to avoid interference with the workpiece.
- Drilling with long shank type drills require a prepared hole of the same diameter or a centering hole larger than the drill diameter.
DC<6mm DC≤DMM
DC DMM
DC≥6mm DC>DMM
DC DMM
With Oil Hole (H3D Type/H5D Type) up to 5D deep hole drilling!
●Having internal coolant allows for deeper flat hole drilling.
- Drilling with L/D=5 drills with oil holes require a prepared hole of the same diameter or a centering hole larger than the drill diameter.
Deep Spot Facing Long Overhang Spot Facing 0.5
Tool: MDF0600H5D Tool: MDF0600H3D
| MDF | Able to Continue after 1,500 Holes | | 0.4 | |
| | Work material: S50C ø6mm | | Work material: S50C |
| Cutting Conditions: | 0.3 | Cutting Conditions: |
| | Entrance Hole Bottom |
| v =140m/min, f=0.15mm/rev, | 0.2 | v =90m/min, f=0.1mm/rev, |
| c | | c |
| Fracture at 1,247 Holes Competitor's Product H=30mm(5D), Internal Coolant, | | H=18mm(3D), Internal Coolant, |
| 0.1 | |
| Overhang 45mm, Prepared Hole Depth 3mm (ø6) | | Entrance Hole Bottom Overhang 35mm |
| 0 | |
| 2000 1000 0 | Competitor's Product MDF |
| Inclined Surface Drilling | Controlling Burrs and Chips When Withdrawn |
| Tool: MDF0500S2D | Tool: MDF1000S2D |
| Work material: SCM415 | Work material: SS400 |
| Cutting Conditions: | Cutting Conditions: |
| v =65m/min, f=0.08mm/rev, | v =75m/min, f=0.12mm/rev, |
| c | c |
| H=10mm, External MQL | H=5mm, External MQL |
- Using Flat Drills, General-Purpose Drills, and Endmills
| Flat Drill | General-Purpose Drill | Endmill for Spot Facing |
| Tool | | | |
| MDF Type | GS/HGS Type | GSXSLT Type | |
| | | Concave Shape |
| Convex Shape | Convex Shape | (2°to 3° Concavity) |
| (180°) | (135°) |
| Hole Bottom Shape | | |
| Nearly Flat | | Convex Shape |
| (Concave Shape) | Concave Shape | (Cannot be used for prepared hole drilling) |
| 0~0.5°0~0.5° | | 2~3°2~3° |
| | Within 1D, limited to low feed rate |
| Drilling in Flat Surfaces | Feed rate approximately half of a general-purpose drill | Best | Feed rate one-fifth or lower of a general-purpose drill | |
| Drilling in Non-Flat Surfaces | | | | Within 1D, limited to low feed rate |
| Optimal (Within 2D is recommended) | Unusable | | |
| | | | Feed rate one-two or lower of a Flat Drill |
Traversing Unusable Unusable Best
| Coolant Supply | Cat. No. | Diameter Range (mm) Drilling Depth (L/ ) | | Content |
| | | D | |
| MDF□□□□S2D | | Up to 2 | 132 items |
| | ø0.3 to 20.0 | | |
| External | | | | |
| MDF□□□□L2D | 3.0 to 20.0 | Up to 2 | 107 items |
| | ø | | |
| MDF□□□□H3D | | Up to 3 | 99 items |
| | ø3.0 to 16.0 | | |
| Internal | | | | |
| MDF□□□□H5D | ø3.0 to 16.0 | Up to 5 | 99 items |
J
Solid Special Indexable Reamer Brazed Others
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