Blades are made by original carbide which last up to 2X longer than blades made by recycled tungsten carbide, and as well 2X toughness to avoid breakage Blades are sharpened by lastest precise CNC machines to make sure the cutting edges are fully ground and straight in one line，can keep the blade sharp for a long time Sychronized double sides sharpening guarantee the symmetry of two cutting edges and tight tolerance between each blade. An option for professionals Standard 3 1/4" 82mm blades adapt to most popular electric planers in the market Includes ten 3.25 inch carbide replacement handheld planer knife DUPRO 3-1/4" planer blades compatible with BLACK AND DECKER and other 3-1/4 inch portable planer Compatible with AEG(ATLAS COPCO): EH3-82,EH82, EH82-1, EH700, EH822, H750, H500, EH800, EH450,PL750 Compatible with BLACK&DECKER:BD710,BD711,BD713,BD725,DN710,DN720,KW712,KW712KA,KW713,KW725,KW750K Compatible with BOSCH:PL2032K,PL2632K,1592-9,GHO14-4 V-LI, GHO15-82,GHO18 V-LI, GHO26-82,GHO40-82,GHO282,GHO36-82C,GH31-82,PHO2-82,PHO3-82/B,PHO15-82,PHO16-82,PHO25-82,PHO30-82,PHO100, PHO150,PHO200,PHO300,1593, 1560, 1594, 1594, 3272, 3272A, B1760,B1750,53518, 53514, 3365, 3258 Compatible with CASALS: CE82, CE98ACE Compatible with COTECH(CLAS OHLSON): 18-3086 Compatible with CRAFTSMAN: 17370, 26729 Compatible with DEWALT: DW677, DW678K, DW680, KW713, DW678, DW678EK, DW680K D26500,D26501,D26676,273794, 372105-01 Compatible with DRAPER: PT682,P882 Compatible with FELISATTI: TP282 Compatible with FERM: FP82 Compatible with FREUD: FE82, FE82VCE Compatible with HAFFNER: FH224 Compatible with HITACHI: F20,FU20,P18DSUJ,P18DSU,W4(Cordless),P20SA,P20SA2,P20SF, P20V Compatible with HOLZ-HER: 2321, 2321-S, 2322, 2223 (NEW), 2121, 2330 Compatible with MAFELL: EHU82, MHU82, MHU82S, MHU82D Compatible with MAKITA:KP0800K,KP0810,XPK01Z,XPK02Z,1100*,1125*,1900*,1900B*1901*,1902,1923BV,1923BD,1923H,DKP180Z,FB0800,M102,D-46246, D-16966, 793322-22, 1001, 1125B, 1911, 1923B, MI900 Compatible with METABO:P18DSLQ4,P20STQS,EXPERT,4382, HO0882, HO8382 Compatible with MILWAUKEE: M18,42-26-0022,2623-20 Compatible with NUTOOL: NPT82 Compatible with PERLES: SK82A, HOB882 Compatible with PEUGEOT: ENERGY PLANE-910,RA3/82,RA82CS.RA400 Compatible with PORTER CABLE: 367, 9125, 696598 Compatible with RYOBI: P611,EPN-7582, EPN7582NHG,GH014,HL-82,L180,L282,L1323A*,L-1835 Compatible with SKIL: PL201201,PL593801,1560-1 92H, 94H, 95H, 96H, 97H., 2608635341, 2610394635, 2608635350, 2608635405 Compatible with STAYER: P910,PH82 Compatible with WEN:6530 Compatible with WOLF/KANGO: 8614,8057,8108