Strong MultiDrills HY Series
■ 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 ensures 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 a 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 0 .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
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: C onventional 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 efficiency and 2.7 times the tool life of conventional drills 2.5 times the efficiency and +1.4 times the tool life of conventional drills (1.2 times the tool life of competitors' high-efficiency drills) HY Wear 2800 holes
HY
1900 holes
Wear
2300 holes
Competitor's High-Efficiency Drill
Wear
700 holes
Conventional drill
Wear
2000 holes
Conventional drill
Wear
(No. of Workpieces)
(No. of Workpieces)
0
1,000
2,000
0
1,000
2,000
3,000
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