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Bosch Electric Rotary Hammers
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Style B |
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Style E |
Use the rotary-only mode for general purpose drilling and driving fasteners (requires a chuck adapter or a magnetic bit holder). In rotary-percussion mode, the tool provides both a rotary drilling and hammering action. In the percussion-only mode, the tool provides only the hammering action. Use this mode when working with chisels and other masonry tools (see Chisels for Rotary Hammers). All have a variable speed motor—the further you depress the trigger, the faster the drill rotates.
For SDS-Plus Bit Shanks—Also known as SDS-Drive rotary hammers, these are lightweight and ideal for overhead work and drilling smaller holes. A powerful and durable hammer mechanism lets you drill deeper, larger holes in masonry and concrete in less time than with hammer drills. Use with SDS-Plus drill bits. Note: SDS-Plus and SDS-Max bits are not interchangeable.
For SDS-Max Bit Shanks—A deeper drive system minimizes wobble for straighter, more accurate holes and better overall performance to other rotary hammers. A powerful and durable hammer mechanism lets you drill deeper, larger holes in masonry and concrete in less time than with hammer drills. Use with SDS-Max drill bits (see SDS-Max-Shank Masonry Drill Bits and SDS-Max-Shank Core Drill Bits). Note: SDS-Plus and SDS-Max bits are not interchangeable.
12 Chisel Lock Positions and 36 Chisel Lock Positions—A chisel lock allows you to choose from 12 or 36 chisel positions to match the angle of many surfaces.
Model Number RH1255VC—Model number RH1255VC provides smooth starts and won't slow down as you drill deeper.
Built-In Safety Clutch—A built-in safety clutch protects you and the hammer if the bit gets stuck in your material.
For Max. Rotary Hammer Bit Size for Concrete | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Style | Drill Bit | Core Drill Bit | Max. No-Load Rotational Speed, rpm | Max. No-Load Blows per min. | No. of Chisel Lock Positions | Overall Lg. | Wt., lb. | Current, amp | Gear Housing Material | Mfr. Model No. | Certification | Features | Each | |||
For SDS-Plus Bit Shanks | ||||||||||||||||
| B | 1" | — | 1,300 | 5,100 | 36 | 15" | 6.4 | 8 | — | GBH2-26 | CSA-US Certified, UL Listed | Built-In Safety Clutch Chisel Lock | 27845A71 | 0000000 | ||
For SDS-Max Bit Shanks | ||||||||||||||||
| E | 2" | 6" | 200 | 2,150 | 12 | 23 1/2" | 30 | 15 | Metal | RH1255VC | C-UL Listed, CSA Certified, CSA-US Certified, ETL Listed, UL Listed | Built-In Safety Clutch Chisel Lock Cushioned Grip Service-Reminder Light | 31795A35 | 00000000 | ||
Jancy Magnetic-Base Drills for Hollow-Core Cutters
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Style B |
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.
Style B—Styles A and B have a fixed base.
Overall | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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 | |||||||||||||||||||
| 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 | 000000000 | ||
