Replaceable Tip Drills SMD - MFS
MFS Ideal for drilling and burr control on non- at surfaces
DEX Coat
High rigidity with RS thinning
● Suited to various types of drilling thanks to a point angle of 180° Can be used for high-efficiency spot facing, drilling on non-horizontal surfaces such as inclined and cylindrical surfaces, and interrupted drilling. Also reduces burrs at the hole exit. ● Improves machining stability Achieves high rigidity by employing RS THINNING, which ensures thick web at the bottom.
Excellent entry with sharp edge Strong peripheral edge
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■ Performance
Comparison of Hole Diameter Accuracy
Comparison of Cutting Force
MFS Type
0.5532
max ▲ ( ▲ ) ave min
0.5528
0.5524
0.5520
0.5516
Competitor's Product
0.5512
0.5508
0.5504
MFS Type
Competitor's Product
Tool
: SMDH 140S + SMDT 1400MFS
Part Material : Carbon Steel Cutting Conditions : v c =328 SFM , f =0.006 IPM , Hole depth 0.827", Wet
■ Precautions when Using MFS Type Heads
No guide hole (final hole only)
Flat finishing of hole bottom
With guide hole
Application
Guide Holes
Non-flat surface
Flat surface
○
○ (guide hole not needed)
○ ○
1.5D holder
3D to 12D holders
×
×
n Recommended Speeds & Feeds - 1.5XD Speed: v (SFM) / Feed: f (IPR)
Drill Dia. Gray Cast Iron Ductile Cast Iron Aluminum Alloy Φ Dc Min - Optimum - MaxMin - Optimum - MaxMin - Optimum - MaxMin - Optimum - MaxMin - Optimum - MaxMin - Optimum - MaxMin - Optimum - Max Soft Steel General Steel Hardened Steel Stainless Steel ~0.6299 Vc 200 - 260 - 330 160 - 230 - 300 130 - 200 - 260 130 - 200 - 260 160 - 230 - 300 160 - 215 - 260 330 - 500 - 650 f .0039 - .0059 - .0079 .0039 - .0059 - .0079 .0019 - .0039 - .0059 .0019 - .0039 - .0059 .0039 - .0059 - .0079 .0039 - .0059 - .0079 .0098 - .012 - .014 ~0.7874 Vc 200 - 260 - 330 160 - 230 - 300 130 - 200 - 260 160 - 230 - 300 160 - 230 - 300 160 - 215 - 260 330 - 500 - 650 f .0039 - .0059 - .0079 .0039 - .0059 - .0079 .0019 - .0039 - .0059 .0019 - .0039 - .0059 .0039 - .0059 - .0079 .0039 - .0059 - .0079 .012 - .014 - .016 ~1.212 Vc 200 - 260 - 330 160 - 230 - 300 130 - 200 - 260 160 - 230 - 300 160 - 230 - 300 160 - 215 - 260 330 - 500 - 650 f .0059 - .0079 - .0098 .0059 - .0079 - .0098 .0039 - .0059 - .0079 .0019 - .0039 - .0059 .0059 - .0079 - .0098 .0059 - .0079 - .0098 .014 - .016 - .018 Note: 1. The recommended hole depth is 2 x drill diameter. The depth is measured from the highest point of the hole on drilling in inclined surfaces.
2. The recommended cutting conditions are those for drilling on flat horizontal surfaces. 3. Adjust the feed rate according to the inclination angle when drilling on an inclined surface. 4. Set the feed rate at 70% or lower when the inclination angle is 30° or less. 5. Set the feed rate at 50% or lower when the inclination angle is larger than 30°. 6. This product is a drilling tool. Do not use it for traversing or helical milling.
J102
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