TGM Internal Minor Calipers The extensive range of internal Bowers TGM calipers has been further improved to ensure maximum durability and accuracy, with carbide contact points now fi tted to all models. Quotations for non-standard calipers can be supplied against component drawings. Features High performance braded cable made from Dacron (by Dupont). For longer cable life and excellent repeatability. In continued cyclic testing Dacron out-performed braded steel cable. Carbide ball contacts as standard to give enhanced quality of feel, longer contact life and less prone to marking component surfaces. Longer tapered contacts for easy access on groove measurement. Easy setting with rotating scale and protective bezel for workshop use.