CMT 814.160.11 Round Nose Bit 5/8 R=5/16" S=1/4" CMT Spare parts but this Power-Stud+ SD1 is

but this Power-Stud+ SD1 is specifically designed for performance in cracked concrete as well

Yes - one of the key advantages of this blade is that it can be resharpened when needed

The CMT 550-114X is a 4-1/2" (114mm) Multi-Purpose TCT Hole Saw (Series 550X) with XTREME FAST Push&Lock system

Is this blade suitable for professional construction use

CMT 814.160.11 Round Nose Bit 5/8 R=5/16" S=1/4" CMT Spare parts but this Power-Stud+ SD1 isThe CMT 814. 160. 11 is a Round Nose Bit. Round nose (core box) bits rout semi circular coves and decorative grooves. Used for fluting, veining, and decorative routing. Radius: 5 16". SPECIFICATIONS Product Type Round Nose Bit Radius 5 16" Shank 1 4" Blade Material Carbide Tipped (TCT) Rotation Right hand (RH) Country of Origin Made in Italy COMPATIBLE MACHINES Handheld Router Router Table CNC Routing Machine APPLICATIONS Routing Coves Decorative