Attach to U-Clamps for Step-Over and Spreading applications.

This product is patented.
Extender Blocks
Extender Block
4in1-stepover
4in1-spreader
Part No. Thread D L For Clamps Weight
XDB1
(XDB1M)
5/16-18
(M8)
5/8″
(16 mm)
1″
(25 mm)
UD Series 0.14 LB
(0.06 kg)
XFB
(XFBM)
3/8-16
(M10)
45/64″
(18 mm)
2″
(51 mm)
UE, UF, UG Series 0.28 LB
(0.13 kg)
XMB2
(XMB2M)
3/8-16
(M10)
7/8″
(22 mm)
2″
(51 mm)
UM, UP Series 0.46 LB
(0.21 kg)
XPB3
XPB3M
3/8-16
(M10)
1-1/8″
(28 mm)
3″
(75 mm)
UP Series 1.07 LB
(0.49 kg)