Page 325 - YG 2019

TECHNICAL
DATA

17 Honing Guide of DREAM DRILLS
THREADING
THREADING
■ Dimension of Honing ■ Scraper

for Roughing (#140)

TOOLS
H A A for Finishing (#230〜#400)
W
Work Material Alloy Steels Mild Steels Cast Iron
RAKE ANGLE TOOLS
25° W(mm) 0.15〜0.2 0.1〜0.15 0.03
R0.01〜0.02mm
▶ Section A-A ▶The dimension W of stocked products is 0.1〜0.15.

18 Use of DREAM DRILLS SOLID CARBIDE THREAD MILLS

COMBO TAPS(Spiral Point & Spiral Flute)
▶ Chucking with spring collet correctly.

▶ Radial run out at cutting lip must not exceed 0.025 mm. SPIRAL FLUTE TAPS

▶ Tighten clamp of work piece.
SPIRAL POINT TAPS
Bad Good Within 0.025
STRAIGHT FLUTE TAPS

FORMING TAPS
Bad Good

SCREW THREAD INSERT TAPS (STI)
▶ Supply coolant enough to the entrance of hole.

▶ When using Dream Drills with Coolant holes, Supply high PIPE TAPS
pressure coolant.
TECHNICAL DATA
Bad Good Good

19 Shank Type DREAM DRILLS with Coolant Holes

Form HA Form HB Form HE

Form HAK Form HBK Form HEK

▶ Shank Type of stocked products is Form HA.
▶ If you need other Shank Type, we can supply them.
324 • phone:+1-800-765-8665, Technical Support : 888-868-5988, www.yg1usa.com