PETROGRAD screwdrivers are represented by three models. Screwdrivers can be used to adjust the hand tools (planers, saws), and as a gun care screwdriver. The material of the blade is 9XC (DIN - 150Cr14) steel hardened to 56-58 HRc, the handle is made of maple and assembled on brass rivets.
The first model of PETROGRAD screwdriver has a straight tip for installing handles. The total length is 125 mm, the tip size is 10 mm * 1.4 mm. The screwdriver is specifically designed for tightening the screws of the handles and the clamping screw on the planes (except No1), also suitable for other tasks. Exactly fits the size of the slot of the plane screws, which gives the necessary strength without sliding and stalling the slot on the soft brass screws.
The second model of a PETROGRAD screwdriver has a straight tip for mounting a chip breaker. Total length 125 mm, tip size 12 mm * 1.6 mm. The screwdriver is specially designed for tightening the chipbreaker screw on planes, also suitable for other tasks. Exactly fits the size of the slot of the plane screws, which gives the necessary strength without sliding and stalling the slot on the soft brass screws.
The third model of a PETROGRAD screwdriver has a straight tip for installing a frog. Total length 210 mm, tip size 8 mm * 1.2 mm. The screwdriver is specially designed for tightening the frog's screws on planes, and is also suitable for other tasks. Exactly fits the size of the slot of the planer screws, which gives the necessary strength without sliding and stalling the slot on the soft brass screws.
Totally hand made at PETROGRAD factory of joinery and carpentry tools. Made in Russia.