What happened to Porter Cable. Delta and Craftsman tools?

PORTER-CABLE 20V MAX Impact Driver, 1/4 Inch, 2,700 RPM, Battery and Charger Included (PCCK647LB)

PCC692L 20V MAX Lithium Battery Charger Compatible with Porter-Cable 20V Lithium Battery PCC685L PCC680L PCC681L PCC682L Black Decker LCS1620 20V Lithium Battery LBXR20 LBX4020

(Pack of 2) 20V MAX Lithium Battery Replacement for Porter-Cable, 4 -Amp Hour Battery (PCC685L PCC685LP PCC682L PCC681L PCC680L PCC680LP PCC640 PCC600 Cordless Tools)

PORTER-CABLE 20V MAX* Impact Driver Kit, Cordless, 1/4-Inch (PCCK640LB)

PORTER-CABLE 20V MAX 18 Gauge Brad Nailer Kit with Battery and Charger (PCC790LA)

PORTER-CABLE 20V MAX* 6-1/2-Inch Cordless Circular Saw, Tool Only (PCC660B)