Years and years of experience in this field have resulted in the precision manufacturing of all Tacwise staples and nails. Produced from premium quality raw materials our exacting specifications include tolerances of 0.1mm to ensure the most accurate and consistent stapling / nailing actions time after time. For hand/electric staple guns and hammer tackers using 140, T50, G type staples. For a full compatibility list see below. 140 Series Compatibility Brand / Model TACWISE 140 Staples ARROW 140 Staples Z1-140 6-12mm ET501C, ET501F, T501 5-In-1 6-14mm Z1-140 6-12mm Powershot 5700 - EC / 8000 - EC 14mm 1284 Combi Cable Tacker 4-14mm ET50, ETN50, ETF50BN, T55BL 6-14mm 1153 Combi Cable Tacker 4-14mm T55, T55C, ETC50, ETC50B, ETC50K 6-14mm .