Strong MultiDrills HY Type
■ General Features Strong MultiDrill HY Type is a 3-flute drill that achieves stability and high efficiency in machining of steel and cast iron, reducing the load on each flute and extending the tool life.
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■ Features and Applications ● High-Efficiency Drilling of Steel and Cast Iron Thick web and 3-point margin design ensure stable hole diameter accuracy in high-efficiency drilling. RY THINNING also reduces cutting force in high-efficiency drilling. Applicable to cutting conditions exceeding v f =31.5 IPM in steel drilling and v f =39.4 IPM in cast iron drilling. (for ø10mm sizes) ● Long Tool Life DEX Coat for drills utilizes nano-coating technology to provide more than double the tool life of conventional coatings. 3-point margin design gives excellent guide performance for vibration control and long, stable tool life.
Evacuation Drastically improved chip control and evacuation
High Rigidity Retains high rigidity with wide land.
Improves chip evacuation
Reduces cutting vibration
■ Product Range Coolant Supply
Ɣ Drilling of general steel and gray cast iron
Diameter Range (mm)
.008 .016 .024 .032
Cat. No.
Hole Depth (L/D) Number of items
MDW □□□□ HY3
up to 3
23 items in stock
MDW □□□□ HY5
Internal
ø5.0 to ø16.0
up to 5
23 items in stock
0
MDW □□□□ HY8
.08 .16
.24 .32
.40
.48 .56 .64
up to 8
6 items in stock
Diameter (inch)
■ Application Examples Machine components Alloy Steel ·Tool: MDW 1250HY3 (ø12.5mm 3D) ·Cutting Conditions: Conventional Tool : v c =295 SFM, f =0.01 IPR, v f =22.6 IPM HY Type : v c =230 SFM, f =0.0157 IPR, v f =28 IPM H =12mm (through), internal coolant supply (water soluble) Machine components Ductile Cast Iron ·Tool: MDW 1020HY3 (ø10.2mm 3D) ·Cutting Conditions: Conventional Tool : v c =230 SFM, f =0.011 IPR, v f = 24 IPM HY Type : v c = 262 SFM, f =0.024 IPR, v f =59 IPM H =28mm (stop), internal coolant supply (water soluble) 1.25 times the ef ciency and 2.7 times the tool life of conventional drills 2.5 times the ef ciency and +1.4 times the tool life of conventional drills (1.2 times the tool life of competitors' high-ef ciency drills)
2800 holes
HY Type
Wear
1900 holes
HY Type
Wear
2300 holes
Competitor's High-Ef ciency Drill
Wear
700 holes
Conventional drill
Wear
2000 holes
Conventional drill
Wear
(No. of Workpieces)
(No. of Workpieces)
1,000
2,000
0
0
1,000
2,000
3,000
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