Shinano Die Grinder 6mm Collet 4500Rpm TTEX32 Speed at rated load 640 BLX415 6.50X210 Speed at rated load 640 1800 rpm SSA12 Toledo Engineers Square 300mm Used for producing right angles in carpentry and engineering applications Internal & External Squareness as per BS 939 Grade B An excellent range of precision steel squares that are second to none Hardened spring steel blades are permanently fixed to the stock by means of tapered self locking rivets which ensure complete rigidity Both the blade and stock are precisely ground to ensure straightness and parallelism Working edges of the blades are lapped which further enhances accuracy A groove on the inner corner of the stock aids in the clearance of burr or dirt Type: Non graduated Blade length: 300mm We recommend properly designed compressed air facilities so that air tool performance is not compromised etc where slower Speed is required