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Geumcheon-gu, Seoul
153-814 South Korea
Tel : +82 70 4680 6817
Fax : +82 2 806 0946
Email: startools@daum.net

For Hardened Steels

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2BT 2F Ball End-Tapered Neck

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Features
• Tapered neck for vibration-reduced cutting
• Extended neck style for long reach applications
• Used micrograin solid carbide excellent for high speed cutting
• Greater rigidity and reduced chattering through optimized geometry
• Nanocomposite coatings for improved wear resistance and longer tool life
• For Dry cutting and Wet cutting

2날볼테이퍼넥.jpg

Tolerance

Cutting Dia.

D≤6: 0/-0.01
D>6: 0/-0.015

Radius

R≤0.25: 0/-0.005
R>0.25: 0/-0.01



Recommended workpiece Material :

◎:First choice   ○:Alternative choice   △:Limited choice

Carbon Steel/Alloy Steel
(up to 350 HB)
Stainless Steel
(up to 240 HB)
Cast lron
(up to 260 HB)
Prehardened Steel
(up to 50 HRc)
Hardened Steel
(45 to 55 HRc)
Super Hardened Steel
(55 to 68 HRc)
Titanium
Alloy
Copper
Alloy
Aluminum
Alloy
Resin &
Plastics
Graphite

(Unit: mm)

EDP No. Cutting Dia X Radius of Ball Nose
d X R
Length of Cut

L1
Angle

A[˚]
Length of Reach

L2
Overall Length

L
Shank Dia

D
Quantity
2BT 200 2500 2.0 X R1.03.5 0.725706
2BT 200 3700 2.0 X R1.03.5 0.7537706
2BT 250 2500 2.5 X R1.253.5 0.725706
2BT 250 3700 2.5 X R1.253.5 0.7537706
2BT 300 2500 3.0 X R1.54.5 0.725706
2BT 300 3700 3.0 X R1.54.5 0.7537706
2BT 300 3000 3.0 X R1.55 1.5 30706
2BT 300 4000 3.0 X R1.55 1.5 40806
2BT 400 4500 4.0 X R2.06 1.5 45906