Shinwa Radius Scale A-2 for R8 to R15mm Shapton Glass Stones Canada Narex developed a new type

Narex developed a new type of steel

The tapered bit acts as both a pilot bit and drill bit and is machined with elongated flutes for fast and clean chip clearance

Set of six chisels is supplied in a tool roll and includes the following sizes:

3 (smooth) cut which gives a medium finish for rasps

it doesn't really leave a mirror finish

Shinwa Radius Scale A-2 for R8 to R15mm Shapton Glass Stones Canada Narex developed a new typeThis gauge from Shinwa is made from hardened and tempered stainless steel and can be used to measure outside radius, outside diameter, sheet thickness and also is a rule. The radius measurements have a range of 8 to 15 mm, 0. 5 to 6 mm for diameter, and 0 15cm for the rule. The accuracy is 0. 1 mm for radius, 0. 05 for diameter and 0. 15 mm for the length measurements on the rule. Made in Japan.