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ROUND KNOCK-OUT PUNCHES

From $86.90 to $549.00
Punch Size Model 730 Price Buy
1/2-Inch
12-20905
$86.90
Quantity
5/8-Inch
12-20910
$88.75
Quantity
3/4-Inch
12-20915
$91.75
Quantity
1-Inch
12-20925
$99.85
Quantity
1-7/32 Inches
12-20935
$107.75
Quantity
1-1/4 Inches
12-20940
$108.75
Quantity
1-1/2 Inches
12-20950
$135.75
Quantity
1-5/8 Inches
12-20955
$149.80
Quantity
2-Inches
12-20970
$202.95
Quantity
2-1/4 Inches (Comes with P/N #304AVBB Drive)
12-20975
$247.95
Quantity
3-1/8 Inches
12-20980
$549.00
Quantity
Subtotal $0.00
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Overview

Save hours of tedious drilling, sawing, filing and hand-fitting. Produce clean, true holes for sockets, controls, instruments. Cut clean, burr-free holes with these easy-to-use tools. Can be operated by ordinary wrench. One punch required for each hole size.

NOTE: DISCOUNT: 12 UNITS - LESS 15% (ASSORTED)

Accessory Info

Drive punches with a ball bearing drive for faster, easier hand operation are available for the 2-1/4" & 3-1/8" knockout punches.

Drive for 2-1/4" Punch
P/N 12-01721

Drive for 3-1/8" Punch
P/N 12-01720
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Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What material thicknesses can this tool handle? Re: Part No. 12-20925

The max material capacity is 10 gauge thick mild steel.

Q: Does the 3/4 inch hole punch produce a true 3/4 inch hole or to what thousandths of an inch +/- to that dimension will it punch?

Per the manufacturer: Yes it should produce a hole of .750".

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