Groz Toolsteel Hss 5/16In Sq. X 3In (Tb/H/0-16) | Tool Holders - Toolbits & Cut-Off Blades Sagola 4 - Phillips #1

4 - Phillips #1

Extension bits screw together & lock in place with a grub screw to avoid losing the extension down the wall cavity

Self Tapping Thread Inserts - Internal Thread: M6 x 1

Quick release & locking mechanism

Groz Toolsteel Hss 5/16In Sq. X 3In (Tb/H/0-16) | Tool Holders - Toolbits & Cut-Off Blades Sagola 4 - Phillips #1Grade A: Cobalt Steel High Speed Steel with 5% Cobalt These are suitable for use on tougher materials and all heavy duty applications that require an increased depth of cut. Addition of cobalt gives optimum hardness and toughness thus improving the cutting performance. These are suitable for use on lathe machines planers shapers etc. Square Size: 5 16 inch Length: 3 inch