Tools As we don't stock these tools ourselves, we have put together a list of recommendations for you. These tools are available from specialized dealers. MASC Sheet Metal Nibbler BK1 For notching the profile before inserting the pinched seam into the connecting seam. In order to avoid cracking the sheet metal No need to use manual punching machines or drills and no additional notching is required Depth of notch can be regulated simply by regrooving Tail hammer model 175 375 PICARD g For cutting (driving) round sheet metal edges White beech mallett 50 mm Ø x 100 mm For shaping cross-seams on roof penetrations To produce turned-over longitudinal seams One-handed hole punch 3.3 mm Decreases splits in areas in which two notches clash Punch for galvanized sheet steel STUBAI pinched seam pliers model 28 28 01 To produce pinched seam wall connections To install sheets of steel up to 75 mm high STUBAI-seam opening pliers model 27 95 01 To open cross and longitudinal seams STUBAI seam pliers model 28 21 24 To fold sheet metal edges to a depth of 45 mm ZEH deck pliers model 393 160 mm of cheek width, length 570 mm, 3100 g To install ridged, hipped and cross-seams on bends Insertion depth up to 180 mm ERDI sheet metal workers' round-nosed pliers MODEL 31 Length 240 mm To turn pinched seams Insertion depth 47-60 mm MASC sheath vise-grip wrench To clamp two or more sheets of metal in roof penetrations ERDI rounding puncture scissors Model 208, right For cutting round edges to eaves, holes for connecting pieces and rounded roof penetrations ERDI rounding puncture shears Model 208, left For cutting round edges to eaves, holes for connecting pieces and rounded roof penetrations Nylon hammer Head Ø 30 mm, 400 g Scratch resistant work on RHIENZINK "preweathered" - materials Steel ruler, flexible, stainless 500 mm long, 30 mm wide To record notches and seams ERDI Ideal shears Model 316, right, 620 g To cut longitudinal sections and larger radii ERDI Ideal shears Model 316, left, 620 g To cut longitudinal sections and larger radii Exact bevels To level roof pitches and angles Shell iron - slim Model 163 ½ Picard To craft longitudinal and cross-seams As a counter hold against hammer blows ERDI Pelikan shears Model 318 shears To cut straight, longer sheet metal Pinched seam iron To create bigger pinched seams Machinist's hammer 300 g Awl 100 mm To open seams To center/mark the sheet metal  RAU tool for edging eaves TK 105 To cant edges of eaves terminations on panels RAU-Tool for closing eaves To close eaves terminations on panels RAU tool for closing angled seams WFSCH 111 Used to close longitudinal seams manually RAU Angled double seamer WDPF 117 Used to close double seams manually RAU Sheet metal bending tool Used to set up bends/folds of various heights To be used in ridged and arched areas RAU seam press To create pinched seams MASC metal worker's set square Special flat galvanized steel set-square Allows all types of sheet metal to be layed out precisely on workbench and workshop floor No slipping, as a result of precise application on sheet steel 45°-superficial crack is possible MASC Anit-slip mat It sticks to almost all material in almost every position up to a 60° incline It reduces slippage of tools while working on slopes