Обший каталог Yamawa 2016 - 2017 - страница 108

MHSL

Spiral Fluted Taps for Carbon Steels of middle hardness, Through Hole Use （with LH spiral flutes）

Specification

Coating

Recommended Tapping Speeds depending on Materials

Medium alloy steel and High alloy steel heat treated steel IS P IS P

10〜20 10〜20

(m/min) (m/min)

For icon explanation, refer to P.50

Product features

●Most suitable for forged and thermal refined high carbon steels (C48～C55) with 20～30 HRC hardness. ●MHSL ensures long tool life by adopting HSS-Co material of high wear resistance and special coating.

• Adopting proprietary flute design, MHSL ensures consistent chip ejection in the area of middle tapping speed,

and improves surface roughness of internal threads.

Tapping data

Tapping condition（M12×1.25） Tapping result（number of holes）

【Smooth chip ejection】

LH SP (Coated) MHSL

2 Step taper grooves to

improve chip ejection

MHSL smoothly pushes out chips.

【Internal Threads】

LH SP (Coated) MHSL Obtainable from