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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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16 Ga dayton 2Z418 metal cutting shear dayton Chicago vintage MADE IN THE USA
16 Ga dayton 2Z418 metal cutting shear dayton Chicago vintage MADE IN THE USA
$149.99
Metal Snips Shears Westward 10 ATS10 10 Inch ATS7 7 Inch Set of Two
Metal Snips Shears Westward 10 ATS10 10 Inch ATS7 7 Inch Set of Two
$20.00
Black  Decker 12 Gage Porto Shear 115vAC DC Metal Shear 507 40841WVS
Black Decker 12 Gage Porto Shear 115vAC DC Metal Shear 507 40841WVS
$250.00
Klein Tools 8 in Bent Trimmers Scissors Shears Metal Blades Cutting Tool
Klein Tools 8 in Bent Trimmers Scissors Shears Metal Blades Cutting Tool
$40.06
Cutting Scissors Hand Tool Straight Aviation Tin Snip Sheet Metal Shear Pliers
Cutting Scissors Hand Tool Straight Aviation Tin Snip Sheet Metal Shear Pliers
$9.98
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
CT1812 2PC Electricians Scissors Shears Cutter Set Also Cuts Flat
CT1812 2PC Electricians Scissors Shears Cutter Set Also Cuts Flat
$12.23
CENTRAL PNEUMATIC Metal Shear 36567
CENTRAL PNEUMATIC Metal Shear 36567
$44.99
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
$89.99
Pneumatic Air Metal Shear Cutters Hardi Plank Siding
Pneumatic Air Metal Shear Cutters Hardi Plank Siding
$49.99
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
$24.82
Dayton 2Z418 16GA Metal Cutting Shear NICE USED
Dayton 2Z418 16GA Metal Cutting Shear NICE USED
$99.95
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
Suntech Straight Pneumatic Air Metal Steel Shear Cutter Snip Rubber Comfort Grip
Suntech Straight Pneumatic Air Metal Steel Shear Cutter Snip Rubber Comfort Grip
$32.95
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
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
$93.95
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
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
$46.99
Milwaukee 6852 20 18 Gauge Metal Shear w Hex Key
Milwaukee 6852 20 18 Gauge Metal Shear w Hex Key
$105.29
QUACKENBUSH PNEUMATIC ROTARY SHEAR SHEET METAL AIRCRAFT TOOL
QUACKENBUSH PNEUMATIC ROTARY SHEAR SHEET METAL AIRCRAFT TOOL
$349.99
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
30 CAPACITY CENTRAL MACHINERY 5907 SHEET METAL SHEAR BRAKE ROLLER COMBO
30 CAPACITY CENTRAL MACHINERY 5907 SHEET METAL SHEAR BRAKE ROLLER COMBO
$375.00
QUACKENBUSH  PNEUMATIC ROTARY SHEAR SHEET METAL CUTTER  AIRCRAFT TOOL
QUACKENBUSH PNEUMATIC ROTARY SHEAR SHEET METAL CUTTER AIRCRAFT TOOL
$129.99
DIACRO 36 INCH SHEET METAL SHEAR 16 GA NICE HVAC TINSMITH METAL WORKING
DIACRO 36 INCH SHEET METAL SHEAR 16 GA NICE HVAC TINSMITH METAL WORKING
$399.99
8 Hand Shear Sheet Metal Shearer Metal Cutting Cutter
8 Hand Shear Sheet Metal Shearer Metal Cutting Cutter
$119.99
JET 505910 R6 Lightweight Metal Air Shear with Replaceable Jaws and Blades New
JET 505910 R6 Lightweight Metal Air Shear with Replaceable Jaws and Blades New
$139.00


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