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JIS HDISP

For Dry Tapping, Blind Hole Use. Spiral Fluted Taps for Steels

Specification

Coating <2D

Recommended Tapping Speeds depending on Materials

Medium carbon steelsHigh carbon steelsAlloy steels
10中炭素鋼2010高炭素鋼2010合金鋼20
(m/min)(m/min)( m/ min)

Product Features

  • Designed with a through center hole for coolant lubrication, mist lubrication or air blast applications in blind holes.
  • The HDISP has a slow spiral flute, making it the optimum tap for blind hole tapping on horizontal and vertical machines in materials such as carbon steel and alloy steel.

Tapping Data

Tapping Condistion [P4 M10×1.25]

Work Piece Material S50C（18HRC） Bored Hole Shape Blind hole

Bored Hole Sizeφ8.8HDISP
Tapping Length12mm
Can Continue
Tapping Speed8m/min
Conventional
Machinery TypeCNCtapping machineProduct
Cutting FluidDry (Without tapping fluid)
050100150200250300350400
Number of Holes
380（Number of holes processed）
Processed
Speed chart

Slow Tapping Speed Fast

Work Piece20m/min 15m/min 10m/min 5m/min Work Piece
MaterialFully synchronous feed area Material
SCMSCM
AlloyAlloy
SteelSCrHDISP SCrSteel
HighHigh
Carbon※Dry tapping※Dry tappingCarbon
SteelS45CS45CSteel
S45CS45C
MediumSPMedium
CarbonF-SPCarbon
SteelS30C+SP S30CSteel
S25CS25C
LowLow
CarbonCarbon
SteelSS400SS400Steel
20m/min 15m/min 10m/min 5m/min

Tapping range by material being cut.