FORTIS Insert sleeve JISB6339AD form C BT40/MK4

Spacer ISO 7388-2 (JIS B 6339 MAS/BT), Form A, BT 40

Design: Made of alloy case-hardened steel, with a core tensile strength of approx. 950 N/mm² and a hardness depth of min. 0.5 mm. Taper according to DIN 254.

Taper angle tolerance: AT3
Taper surface roughness: Ra < 0.001 mm
Bore tolerance: H6
Hardened: 58 ± 2 HRC

Application: For mounting tools with Morse taper shank and locking thread.