Internal and External Squareness as per
BS 939 Grade B
Useful for setting up and checking jobs where extreme accuracy is required,
Hardened spring steel blades permanently fixed to the stock by means of tapered self-locking rivets which ensure complete rigidity,
Blade and stock are precisely ground to ensure straightness and parallelism,
Working edges of the blades are lapped for enhanced accuracy,
Groove on the inner corner of the stock aids in the clearance of burr or dirt
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