Shrink chuck 4,5° BT 40 - 06 - 90Application: For mounting tools with straight shanks. Note: Toolholders suitable for induction , contact and hot air shrink units. 3, 4, 5 with h4 tolerance and 6 32 with h6 tolerance For 3, 4 and 5 mm only solid carbide tool shanks must be used! All holders are made of forged steel Specific, low warpage hardened Surface hardened HRC 58~60 Hardening depth 0,8mm~0,9mm Taper angle tolerance < AT 3 according to DIN 2080 Surface roughness Ra < 0,4 m

For sealing tools with internal cooling in collet chucks

Low-vibration boring barsWith internal coolingLonger durability of insertsFor longitudinal and plane turningSetting angle: 93°Delivery: without inserts

Ratchet handle gear types : 72 teeth

For the coolant supply through the centre of  HSK toolholders

ADJRGA = Length adjustment range

Collets sealed for high pressure cooling 120 bar with IC DIN 6499 B (ISO 15488 B) ER-system

For mounting straight-shank tools in collet chucks DIN 6391

Centering nut (Pair)

tool steel

Precision coolant supply: Improves chip evacuation and decreases the risk for chip jamming

Suitable for blind holes

E1= 20 pieces