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Metal Shears

What is the shearing angle of punch for sheet metal shearing?

the geometry of shearing punch design

Typically, the punch and die hole diameters are chosen so that the clearance between the 2 is 1/3 the thickness of the sheet metal. (A little more for more brittle materials and a little less for more malleable ones.)

The inverse tangent of 1/3 is 18.43 degrees.

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Cutting Scissors Hand Tool Straight Aviation Tin Snip Sheet Metal Shear Pliers
Cutting Scissors Hand Tool Straight Aviation Tin Snip Sheet Metal Shear Pliers
$10.49
Pneumatic Air Metal Shear Cutters Hardi Plank Siding
Pneumatic Air Metal Shear Cutters Hardi Plank Siding
$49.99
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
$24.18
Air Nibbler Sheet Metal Cutter Cutting Metal Steel Puch Metal Shears Cut TE823
Air Nibbler Sheet Metal Cutter Cutting Metal Steel Puch Metal Shears Cut TE823
$50.27
2 Air Tools Metal Shears Nut Runner USED
2 Air Tools Metal Shears Nut Runner USED
$49.99
Pneumatic Pistol Grip Metal Cutting Shear ACME MP
Pneumatic Pistol Grip Metal Cutting Shear ACME MP
$25.00
MANUAL METAL SHEAR
MANUAL METAL SHEAR
$99.00
10 1 2 LARGE TIN SNIPS SHEET METAL SHEARS SHEET METAL WORKERS TOOLS
10 1 2 LARGE TIN SNIPS SHEET METAL SHEARS SHEET METAL WORKERS TOOLS
$19.99
Vintage Bremil Manufacturing Hand Metal Steampunk Blacksmith Tin Shear Tool
Vintage Bremil Manufacturing Hand Metal Steampunk Blacksmith Tin Shear Tool
$91.95
8 pcs ACCUKUT DOCAP Aviation Tin Snips Pliers Right Cut Metal Shears Scissors
8 pcs ACCUKUT DOCAP Aviation Tin Snips Pliers Right Cut Metal Shears Scissors
$99.99
Cooper Tools Wiss Metalmaster Snips tin shears metal cutter
Cooper Tools Wiss Metalmaster Snips tin shears metal cutter
$10.50
Cooper Tools Wiss Metalmaster Snips tin shears metal cutter
Cooper Tools Wiss Metalmaster Snips tin shears metal cutter
$12.50
DIACRO 36 INCH SHEET METAL SHEAR 16 GA NICE HVAC TINSMITH N PEXTO N USA CUBA
DIACRO 36 INCH SHEET METAL SHEAR 16 GA NICE HVAC TINSMITH N PEXTO N USA CUBA
$1,500.00
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
$24.77
Dayton 2Z418 16GA Metal Cutting Shear NICE USED
Dayton 2Z418 16GA Metal Cutting Shear NICE USED
$99.95
5 Piece Used Tin Metal Snips Shears Cutters 2 Without Spring Open
5 Piece Used Tin Metal Snips Shears Cutters 2 Without Spring Open
$24.85
CENTRAL PNEUMATIC Metal Shear 36567
CENTRAL PNEUMATIC Metal Shear 36567
$44.99
Desoutter 360 Drill Ingersoll Rand 3 8 Impact And Sheet Metal Shears And More
Desoutter 360 Drill Ingersoll Rand 3 8 Impact And Sheet Metal Shears And More
$300.00
NEW Bosch GSC 160 Professional Corded Hand Shear Metal Scissor 220V 240V
NEW Bosch GSC 160 Professional Corded Hand Shear Metal Scissor 220V 240V
$397.28
NEW Bosch GNA 20 Professional Corded Metal Shear Cutter 220V 240V
NEW Bosch GNA 20 Professional Corded Metal Shear Cutter 220V 240V
$483.60
Toolzone Air Metal Shears At022 By Toolzone
Toolzone Air Metal Shears At022 By Toolzone
$59.99
NEW Bosch GSC 160 Professional Corded Hand Shear Metal Scissor 220V 240V E
NEW Bosch GSC 160 Professional Corded Hand Shear Metal Scissor 220V 240V E
$415.52
NEW Bosch GNA 20 Professional Corded Metal Shear Cutter 220V 240V E
NEW Bosch GNA 20 Professional Corded Metal Shear Cutter 220V 240V E
$504.56
NEW Bosch GSC 160 Professional Corded Hand Shear Metal Scissor 220V 240V W
NEW Bosch GSC 160 Professional Corded Hand Shear Metal Scissor 220V 240V W
$451.00
NEW Bosch GNA 20 Professional Corded Metal Shear Cutter 220V 240V W
NEW Bosch GNA 20 Professional Corded Metal Shear Cutter 220V 240V W
$544.50
Shear Metal Sheet Cutter Forged Blades Soft Durable Grip 3 Different Colours
Shear Metal Sheet Cutter Forged Blades Soft Durable Grip 3 Different Colours
$83.99
Pneumatic Pistol Grip Metal Cutting Shear ACME MP 7705
Pneumatic Pistol Grip Metal Cutting Shear ACME MP 7705
$59.99
Malco Turbo Shear Heavy Duty Metal Cutting Shear Pneumatic TSHD1A
Malco Turbo Shear Heavy Duty Metal Cutting Shear Pneumatic TSHD1A
$256.99
Wiss MPC3 9 Metal Wizz Snips
Wiss MPC3 9 Metal Wizz Snips
$26.66
DIACRO 36 INCH SHEET METAL SHEAR 16 GA NICE HVAC TINSMITH METAL WORK
DIACRO 36 INCH SHEET METAL SHEAR 16 GA NICE HVAC TINSMITH METAL WORK
$449.99
Bosch GNA 35 Professional Corded Metal Shear Scissor Cutter Nibbler Grinder
Bosch GNA 35 Professional Corded Metal Shear Scissor Cutter Nibbler Grinder
$915.00
PacTool International SS201 Sheet Metal Shear
PacTool International SS201 Sheet Metal Shear
$120.21
Zephyr HI Shear 3 8 Shank Ram Coin Sheet Metal Dimple Die Rare Punch ZT2865 Set
Zephyr HI Shear 3 8 Shank Ram Coin Sheet Metal Dimple Die Rare Punch ZT2865 Set
$49.99
Lot of 3 Metal Shears Tin Snips
Lot of 3 Metal Shears Tin Snips
$14.99
QUACKENBUSH CO US MADE PNEUMATIC ROTARY SHEAR AIRCRAFT SHEET METAL TOOL
QUACKENBUSH CO US MADE PNEUMATIC ROTARY SHEAR AIRCRAFT SHEET METAL TOOL
$650.00
diamond battery hydraulic shear for metal wire mesh re bar 12v DCC 16L
diamond battery hydraulic shear for metal wire mesh re bar 12v DCC 16L
$1,116.00
8 Hand Shear Sheet Metal Shearer Metal Cutting Cutter
8 Hand Shear Sheet Metal Shearer Metal Cutting Cutter
$119.99
JET JAT 910 R6 Metal Air Shear 505910 New
JET JAT 910 R6 Metal Air Shear 505910 New
$139.00
Electric Metal Nibbler shears snips 220V 520 W scissors BLECHSCHERE Russia
Electric Metal Nibbler shears snips 220V 520 W scissors BLECHSCHERE Russia
$169.00
18 Bolt cutters + large metal cutting shears
18 Bolt cutters + large metal cutting shears
$19.50


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