JIS HC+SP

HC-SP

SpiralFlutedTapsforHighCarbonSteels

・Product�Name����and�Size.
HC+SP〜M6
HC−SPM8〜,all W

Recommended Tapping Speeds depending on Materials

Medium carbon steels High carbon steels

5中炭素鋼10 5高炭素鋼10

(m/min) (m/min) Product Features ●TheHC+SP/HC-SPisaspiralflutetapforhighcarbonsteelsuchasS55Candissuitablefortappingofmediumandhigh hardnessmaterialsupto30HRC. Tapping conditions The HC+SP/HC-SP is best suited for tapping of high carbon steel, alloy tool steel and refined steel.

Workpiece MaterialCutting Speed(m/min)
S45C〜 High Carbon Steel10〜20
SKC、SKD Alloy Tool Steel5〜10
Thermal Refining Steel 25〜35HRC5〜10

Product chart (tensile strength)

HC + SP / HC - SP application range (tensile strength)

E-SP

SP

500 600 700

HC+SP/HC-SP

800

Reference EH-HT EH-PO

Unit:MPa * 900 1000

*1MPa=1N/mm2 ≒1Kgf/mm2÷9.8