Inch Chuck
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 Silverline 793773 SDS+ Chuck Adaptor Fits Most 1 2 Inch x 20 mm Chucks $4.46 Time Remaining: 5d 7h 4m Buy It Now for only: $4.46 |
 Blue Spot 1 2 inch Keyless Drill Chuck $14.09 Time Remaining: 6d 22h 20m Buy It Now for only: $14.09 |
 Bosch 1608571054 Drill Chuck up to 10 mm 1 10 mm 13 1 2 inch 20 cm $46.94 Time Remaining: 4d 20h 28m Buy It Now for only: $46.94 |
 Faithfull CHUCKRA Right Angled Keyless Drill Chuck 3 8 inch $46.54 Time Remaining: 27d 4h 37m Buy It Now for only: $46.54 |
 Bosch 2609255708 15 13mm 1 2 inch x 20 Thread Keyed Chuck with SDS Plus Adapt $49.71 Time Remaining: 27d 1h 46m Buy It Now for only: $49.71 |
 Record Power CWA61 Woodscrew Chuck 21 2 inch $62.29 Time Remaining: 26d 22h 55m Buy It Now for only: $62.29 |
 Hitachi 752082 ZKBF Drill Chuck 10 mm and Hex Adapter 1 4 inch $50.51 Time Remaining: 5d 7h 56m Buy It Now for only: $50.51 |
 Faithfull 1 4 inch Offline Driver with Quick Release Chuck Drive $15.00 Time Remaining: 10d 19h 19m Buy It Now for only: $15.00 |
 Draper 30317 10mm Capacity 3 8 inch x 24 UNF Jacobs Geared Chuck $32.46 Time Remaining: 6d 23h 28m Buy It Now for only: $32.46 |
 Bosch 2609255709 1 2 inch x 20 Thread Chuck with SDS Plus Adapter Screw $29.37 Time Remaining: 6d 20h 55m Buy It Now for only: $29.37 |
 Draper 30178 13mm Capacity 3 8 inch x 24 UNF Jacobs Geared Chuck $34.40 Time Remaining: 5d 17h 56m Buy It Now for only: $34.40 |
 Bosch 2609255702 1 10mm 3 8 inch x 24 Thread Keyed Chuck $54.26 Time Remaining: 7d 16h 17m Buy It Now for only: $54.26 |
 Bosch 2609255701 15 13mm 1 2 inch x 20 Thread Keyed Chuck $57.11 Time Remaining: 7d 16h 17m Buy It Now for only: $57.11 |
 Draper 29424 Screw Chuck 3 4 inch x 16 Teeth Per inch $62.63 Time Remaining: 5d 15h 47m Buy It Now for only: $62.63 |
 Draper 51972 13mm Keyless Chuck 3 8 inch x 24 Tpi $98.40 Time Remaining: 4d 19h 1m Buy It Now for only: $98.40 |
 Draper 89595 Combination Chuck 3 4 inch x 16 Teeth Per inch $253.57 Time Remaining: 4d 20h 55m Buy It Now for only: $253.57 |
 Draper 13838 8 mm 3 8 Inch Chuck Double Pinion Hand Drill $36.74 Time Remaining: 5d 17h 39m Buy It Now for only: $36.74 |
 Bosch 1617000132 SDS Plus Chuck Adapter 1 2 inch 20 UNF $30.26 Time Remaining: 7d Buy It Now for only: $30.26 |
 Bosch 2609255707 15 13mm 3 8 inch x 24 Thread Keyless Chuck $74.60 Time Remaining: 6d 20h 55m Buy It Now for only: $74.60 |
 Draper 30152 13 mm Capacity 1 2 Inch x 24 UNF Jacobs Keyless Chuck $74.17 Time Remaining: 6d 23h 41m Buy It Now for only: $74.17 |
 BOSCH 2608572105 Impact Drill Chuck SSBF 15 13 mm 13 cm 1 2 inch $127.83 Time Remaining: 17h 23m Buy It Now for only: $127.83 |
 Draper 30162 13 mm Capacity 1 2 Inch x 20 UNF Jacobs Geared Chuck $34.94 Time Remaining: 7d 1h 49m Buy It Now for only: $34.94 |
 Bosch 2608550036 SDS Max Chuck Adapter 1 2 inch 20 UNF $71.29 Time Remaining: 4d 20h 31m Buy It Now for only: $71.29 |
 Bosch 1608571061 Quick Drill Chuck up to 10 mm 1 10 mm 13 cm 1 2 inch 2 $69.80 Time Remaining: 17h 24m Buy It Now for only: $69.80 |
 Bosch 2609255700 1 10mm 1 2 inch x 20 Thread Keyed Chuck $54.26 Time Remaining: 7d 16h 17m Buy It Now for only: $54.26 |
 Draper 60491 10 mm Capacity 1 2 Inch x 20 UNF Jacobs Geared Chuck $40.54 Time Remaining: 4d 19h 2m Buy It Now for only: $40.54 |
 Bosch 2609255706 1 10mm 3 8 inch x 24 Thread Keyless Chuck $56.51 Time Remaining: 6d 20h 55m Buy It Now for only: $56.51 |
 Bosch 1608571061 Quick Drill Chuck up to 10 mm 1 10 mm 1 cm 1 8 inch 24 $62.94 Time Remaining: 1d 15h 45m Buy It Now for only: $62.94 |
 Hitachi 752063 SSBF Drill Chuck 1 2 inch x 20 UNF Diameter 15 13 mm $60.49 Time Remaining: 5d 7h 56m Buy It Now for only: $60.49 |
 Bosch 1608571061 Drill Chuck up to 16 mm 1 13 mm 13 cm 1 2 inch 20 $85.86 Time Remaining: 17h 17m Buy It Now for only: $85.86 |
 Bosch 2609255705 15 13mm 1 2 inch x 20 Thread Keyless Chuck with Locking Mech $72.34 Time Remaining: 6d 21h 51m Buy It Now for only: $72.34 |
 Bosch 1608571061 Drill Chuck up to 10 mm 1 10 mm 13 1 2 inch 20 cm $58.26 Time Remaining: 4d 20h 33m Buy It Now for only: $58.26 |
 Bosch 2609255703 1 10mm 1 2 inch x 20 Thread Keyless Chuck with Locking Mechan $74.60 Time Remaining: 7d 16h 17m Buy It Now for only: $74.60 |
 Bosch 1608571061 Quick Drill Chuck up to 16 mm 2 13 mm 1 cm 1 8 inch 24 $84.26 Time Remaining: 17h 23m Buy It Now for only: $84.26 |
 Bosch 2609255704 Heavy Duty 15 13mm 1 2 inch x 20 Thread Keyless Chuck with L $79.14 Time Remaining: 7d 16h 17m Buy It Now for only: $79.14 |
 Bosch 1608571061 Quick Drill Chuck up to 10 mm 1 10 mm 06 cm 1 8 inch 6 $63.94 Time Remaining: 17h 23m Buy It Now for only: $63.94 |
 Draper 30174 13 mm Capacity 3 8 Inch x 24 UNF Jacobs Keyless Chuck $65.40 Time Remaining: 7d 1h 59m Buy It Now for only: $65.40 |
 Bosch 1608571061 Drill Chuck up to 16 mm 15 13 mm 1 2 inch $81.89 Time Remaining: 17h 24m Buy It Now for only: $81.89 |
 Bosch 1608571045 Drill Chuck up to 13 mm 15 13 mm 13 1 2 inch 20 cm $89.86 Time Remaining: 17h 17m Buy It Now for only: $89.86 |
 Bosch 1608571061 Drill Chuck up to 10 mm 05 10 mm 13 cm 1 2 inch 20 $98.03 Time Remaining: 17h 24m Buy It Now for only: $98.03 |
 Bosch 1608571061 Quick Drill Chuck up to 10 mm 05 10 mm 1 cm 1 8 inch 2 $98.03 Time Remaining: 4d 20h 33m Buy It Now for only: $98.03 |
 Draper 60490 10 mm Capacity 1 2 Inch x 20 UNF Jacobs Keyless Chuck $104.29 Time Remaining: 5d 15h 11m Buy It Now for only: $104.29 |
 Draper 30316 10 mm Capacity 3 8 Inch x 24 UNF Jacobs Keyless Chuck $54.89 Time Remaining: 6d 23h 28m Buy It Now for only: $54.89 |
 Bosch 1608571061 Quick Drill Chuck up to 16 mm 15 13 mm 1 cm 1 8 inch 2 $93.94 Time Remaining: 1d 15h 51m Buy It Now for only: $93.94 |
 Bosch 1608571061 Quick Drill Chuck up to 16 mm 3 16 mm 16 cm 1 2 inch 1 $227.54 Time Remaining: 4d 20h 33m Buy It Now for only: $227.54 |
Inch Chuck
Electromagnetic Chucks: The Variable Holding Power Advantage
Electromagnetic chucks can provide variable holding power, which greatly improves their ability to support a wide range of machining applications.
Magnetic chucks are designed for holding ferro-metallic work pieces with a strong, uniform holding force. They consist of an accurately centered permanent magnetic face that works in conjunction with an operator actuated permanent or electromagnet. The work piece closes the magnetic loop to create a secure anchor for the work piece.
Permanent Magnet vs. Electromagnet
Both permanent magnets and electromagnets can be used to produce a magnetic holding force. The choice of a permanent or electromagnetic design is dependent upon both machining applications and externalities. Since permanent magnets do not require electrical power, they are best used when there's no power available or it is unreliable. On the other hand, the magnetic field of permanent magnetic chucks cannot be adjusted, which can be a drawback for machining applications that require variable holding power. In applications where a variable holding power is required, an electromagnetic chuck is the better solution.
Electromagnetic Chuck Operation
Electromagnetic chucks are constructed with electrical coils wound around a steel core embedded in the chuck. To energize the electromagnetic field, a chuck controller is used to generate a variable DC voltage in the chuck's coils. The coil's electromagnetic field causes particles within the ferro-metallic work pieces to be aligned in a common direction. This alignment creates the electromagnetic holding force between the work piece and the chuck. The chuck's poles are magnetic as long as voltage is applied. The operator can adjust the controller's DC voltage to vary the strength of the magnetic field, which, in turn, provides the variable holding force.
The Variable Holding Power Advantage
Variable holding power greatly improves the chuck's ability to support a wide range of machining applications that include cutting, milling, shaping, EDM, high speed cutting operations and thin work for grinding. Electromagnetic chucks can easily be interfaced with machine centers for automation purposes.
Variable holding power is critical for thin work applications. For example, when a part to be machined is thin-0.25 inch or thinner-and the part is presented to a machine operator as one of a stack of similar parts, the piece must be lifted from the stack. Permanent magnets are not designed to lift only one piece from a stack of ferro-metallic parts. However, an electromagnet with variable voltage control allows the operator to decrease the magnetic strength to the point where only one piece at a time can be lifted from a stack of parts.
Shop Safety
The variable holding power of electromagnetic chucks give it an advantage over permanent magnetic chucks. But their selection depends both on the machining application and shop safety. Since electromagnets need constant power to operate, a power failure can introduce a worker safety concern. While uninterruptible power supplies, power conditioners and battery backup systems can be integrated into the machining operations to address these concerns, the ultimate decision depends on the design of a particular machining application.
About the Author
DocMagnet Inc. designs and supplies Magnetic Work holding equipment. Their Electromagnetic Chucks have all metal surfaces and are built and tested to the highest quality.
Which drill to buy to replace cordless craftsman?
Corded or cordless....3/8 or 1/2 inch chuck....dewalt, rigid or porter cable. Would like a drill that is reliable. Considering corded but like the cordless for portability. Having a hard time deciding.
It depends on what you want to use it for.
If you want something really cheap get a corded anything.
For cordless the optons I would suggest are Dewalt, Milwaukee or even Makita. I would go with a 1/2 chuck because just the time you don't it will come up that you need it.
12v would be enough for small light wieght projects. 18v would be a overall descent choice for small to large projects. Even 14.4v would be enough for larger projects.
You don't want a cheap store brand, because you do get what you pay for.
I have a Dewalt 14.4v 1/2 XRP. I do lots of projects and it handles all I have done so far. The 1/2'' chuck is needed when mixing wall texture and also for some hole cutting attachments. I have had mine for about 4 years and it still works like new. Being a little smaller it comes with a quick charge charger and battery, which is nice if you are forgetfull at recharging. Milwaukee are nice but more pricey.
Chuck Biggio flexin 20 inch arms