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Jancy Magnetic-Base Drills for Hollow-Core Cutters
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Style A | Style B | Style C |
These drills work with hollow-core cutters to cut only on the periphery of the hole and produce a solid slug. This allows for a faster and easier cut than drilling with standard drill bits. Also known as magnetic core drilling machines.
They have a feed handle that mounts on the left or right side of the drill. The electromagnetic base attaches to flat ferrous surfaces (such as steel and cast iron). These drills also have a valve to adjust coolant flow. Holding force (also called drill-point breakaway) is calculated against a 1" thick steel plate.
Styles A and B—Styles A and B have a fixed base.
Style C—Style C drills adjust 7° left and right.
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Style | For Max. Cutter Dia. | For Cutter Shank Size | Max. Cutting Dp. | Spindle Travel | Max. No-Load Rotational Speed, rpm | No. of Speeds | Current, amp | Holding Force, lbf | For Min. Surface Thk. | Coolant Included | Lg. | Wd. | Ht. | Wt., lb. | Mfr. Model No. | Each | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
120V AC | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A | 1 3/8" | 3/4" | 2" | 5 11/16" | 590 | 1 | 9.5 | 2,810 | 1/2" | No | 10 1/4" | 3 1/2" | 19 3/4" | 25.8 | JME Holemaker III | 2840A38 | 0000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A | 1 3/8" | 3/4" | 2" | 10 1/4" | 520 | 2 | 9.2 | 2,245 | 3/8" | No | 10 3/4" | 7 3/4" | 24" | 23.5 | JMU 137 MQW | 8837A45 | 00000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
A | 4" | 3/4" | 4" | 11" | 750 | 2 | 15 | 5,170 | 3/8" | No | 17" | 8" | 34 1/2" | 79.3 | JMU 404M | 8837A44 | 00000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
B | 1 1/2" | 3/4" | 2" | 2 9/16" | 480 | 1 | 9.4 | 650 | 3/8" | No | 13 5/8" | 7 7/8" | 17 5/8" | 32 | JHM USA101 | 8837A21 | 000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
C | 2 1/2" | 3/4" | 2" | 10 1/4" | 520 | 2 | 12.6 | 3,145 | 3/8" | No | 12 3/4" | 8 1/2" | 30 1/8" | 35.5 | JCM 256 U | 8837A43 | 00000000 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||