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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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Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
$24.35
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
$50.65
MANUAL METAL SHEAR
MANUAL METAL SHEAR
$99.00
Dayton Sheet Metal Cutting Shear Model 2Z418
Dayton Sheet Metal Cutting Shear Model 2Z418
$114.99
CT1812 2PC Electricians Scissors Shears Cutter Set Also Cuts Flat
CT1812 2PC Electricians Scissors Shears Cutter Set Also Cuts Flat
$11.81
Vintage Bremil Manufacturing Hand Metal Steampunk Blacksmith Tin Shear Tool
Vintage Bremil Manufacturing Hand Metal Steampunk Blacksmith Tin Shear Tool
$99.95
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
2 Air Tools Metal Shears Nut Runner USED
2 Air Tools Metal Shears Nut Runner USED
$44.99
Cooper Tools Wiss Metalmaster Snips tin shears metal cutter
Cooper Tools Wiss Metalmaster Snips tin shears metal cutter
$10.50
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
Sheet Metal Nibbler Steel Cutter Hand Nibbler Shear AT249
$24.04
Dayton 2Z418 16GA Metal Cutting Shear NICE USED
Dayton 2Z418 16GA Metal Cutting Shear NICE USED
$99.95
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
Metal Shear Electric 35 Amp Hitachi RECON 16 Gauge
Metal Shear Electric 35 Amp Hitachi RECON 16 Gauge
$257.51
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
EASTWOOD SHEET METAL SHEAR AUTO BODY AIRCRAFT WORK CUTTER NIBBLER TOOL
EASTWOOD SHEET METAL SHEAR AUTO BODY AIRCRAFT WORK CUTTER NIBBLER TOOL
$42.00
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
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
Black  Decker 12 Gage Gauge Porto Shear Metal Shear Works Great
Black Decker 12 Gage Gauge Porto Shear Metal Shear Works Great
$110.00
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
$87.36
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
18 Bolt cutters + large metal cutting shears
18 Bolt cutters + large metal cutting shears
$19.50
Bosch GNA 35 Professional Corded Metal Shear Scissor Cutter Nibbler Grinder
Bosch GNA 35 Professional Corded Metal Shear Scissor Cutter Nibbler Grinder
$915.00
MAKITA ARMATURE 619237 4 ROTOR 18V BJS130 LXT Li Ion Cordless Metal Shears
MAKITA ARMATURE 619237 4 ROTOR 18V BJS130 LXT Li Ion Cordless Metal Shears
$35.50
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
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
$868.00
MALCO TURBOSHEAR METAL CUTTING TURBO SHEAR 360 ROTATE 1979087 DRILL IMPACT TSHD
MALCO TURBOSHEAR METAL CUTTING TURBO SHEAR 360 ROTATE 1979087 DRILL IMPACT TSHD
$69.99
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
Sheet Metal Left Cutting Shear Aviation Tin Snips Steel Scissors Hand Tool Red
Sheet Metal Left Cutting Shear Aviation Tin Snips Steel Scissors Hand Tool Red
$34.22
Sheet Metal Right Cut Shear Aviation Tin Snips Steel Scissors Hand Tool Green
Sheet Metal Right Cut Shear Aviation Tin Snips Steel Scissors Hand Tool Green
$33.67
Sheet Metal Offset Straight Cut Shear Aviation Tin Snips Scissors Hand Tool New
Sheet Metal Offset Straight Cut Shear Aviation Tin Snips Scissors Hand Tool New
$37.95
Bull Dog Aviation Snips Sheet Metal Shears Tin Cutting Steel Scissors Tool Blue
Bull Dog Aviation Snips Sheet Metal Shears Tin Cutting Steel Scissors Tool Blue
$29.66


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