Operating Instructions
TBH Bench Drill
Dear Customer,
The PROXXON TBH bench drill with a drill chuck range of
up to 10 mm is a high-grade precision drilling tool desi-
gned for a range of industrial materials. Before using the
drill, read the enclosed safety regulations and operating
instructions for information on the safe and proper operati-
on of the drill.
General overview
1. Chuck key
2. Fastening bolt for cover hood
3. Cover hood
4 Drill lever
5. On/off switch
6. Drill chuck
7. Depth display
8. Bit stop locking bolt
9. Drill column locking bolt
10. Extension arm locking bolt
11. Extension arm
12. Height adjustment crank
13. Drill column
14. Key surface (SW 17)
Description
The TBH bench drill was designed for maximum precision,
performance and ease of use and offers an impressive
range of characteristics:
• Plano-milled workbench made of high-grade, ultra-ribbed
aluminium diecast.
• Sturdy chromium-plated steel column.
• Convenient crank mechanism height adjustment as an
auxiliary to centre sleeve lift.
• Lock-type bit stop with dial.
• Three-speed operation geared to drive belt position, with
six-fold torque in lower speed range.
• Drill spindle with high-grade, precision ball bearings (non-
free-floating).
• 10 mm drill chuck (included), plus collet chuck retainer in
the spindle end (collet chucks available as accessories).
Technical data:
Dimensions:
Working radius
140 mm
Workbench
200 x 200 mm
Max. bench surface distance
to drill chuck
230 mm
Centre sleeve lift
63 mm
Auxiliary height adjustment via crank
70 mm
Motor:
Voltage
230 volt
Output 300
watt
Idle speed
1,080, 2,400
and 4,500 rpm
Cut-off
KB 5 min
Noise level
≤
70 dBA
Effective acceleration
≤
2.5 m/s
2
Operation
Important!
Ensure that the drill is securely mounted on a stable sup-
port before putting it into operation.
Caution!
Unplug the drill before changing application tools and
before all adjusting operations!
Clamping bit in drill chuck
1. Insert chuck key in drill chuck 6 (Fig. 1).
2. Turn chuck key counter-clockwise to open chuck.
3. Push bit into chuck to bit stop.
4. Turn chuck key clockwise to close chuck.
Note:
Close chuck without completely securing bit to check for
proper seating of bit, then secure bit tightly.
Important!
Remember to remove chuck key following chucking.
Removing and installing drill chuck
Note:
We recommend collet chucks (available as accessories) for
precision-true drilling operations that the standard drill
chuck is unable to perform. When using collet chucks, it is
first necessary to remove the standard drill chuck.
1. Lock spindle to key surface 14 (Fig. 1) using fork
spanner (SW 17).
2. To unscrew chuck (counter-clockwise) or to screw chuck
in (clockwise), insert chuck key, which acts as lever.
Tighten bit in collet chuck (accessory)
Important!
Tightening the collet chuck without inserting a suitable
drill shank will result in damage to the collet chuck.
1. Lock spindle to key surface 14 (Fig. 1) using fork
spanner (SW 17).
2. Unscrew union nut.
3. Insert suitable collet chuck together with drill shank and
tighten union nut.
Note:
Tighten all application tools for minimal protrusion. Over-
protruding shanks bend easily and result in out-of-round
running.
- 6 -
GB
WWW.PROXXON.RO
