Expert Tool Industries is an Indian company that manufactures a wide range of precision gear cutting tools including gear hobs, spline hobs, sprocket hobs, worm wheel hobs, timing pulley hobs, and serration hobs. The company offers these tools in various sizes and dimensions using premium quality steel. Expert Tool Industries also provides tool sharpening services and designs custom non-standard tools using computer-aided design software to optimize performance.

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PRECISION GEAR CUTTING TOOL THAT WE OFFER QUALITY WITH ITS EFFICIENCY
Works: Plot No.H-5/45, MIDC Chikalthana, Aurangabad – 431 210 (M.S.) India
Contact No. +919371170049, Fax: +91 240 2472076
Email: maheshdigraskar@experttoolindustries.com
Website: www.experttoolindustries.com

2. INVOLUTE GEAR HOBS
Involute Spline Hobs that we manufacture are used for cutting of all kinds
of standard and non standard involute splines as per DIN 5480, 5481 &
5482. These involute spline hobs are produced with the pressure angles of
20°, 30°, 37.5° & 45° with or without shoulder clearances in single and
multi start designs.
Accuracy: 'AA', 'A' & 'B' as per DIN3968
Material : M35, ASP2030
Profile : Semi-topping or Non-topping with or without shoulder clearance
PRODUCTS
We are engaged in offering a wide range of gear hob cutters which includes spling hobs,
sprocket hobs, micron hobs, serration cutters and worm wheel hobs. These are
manufactured using premium quality steel and are available in various sizes and
dimensions. Our range of gear hob cutters is highly demanded all across the Country for
its superior quality and cost effective prices.
TYPE OF HOBS
- GEAR HOBS
- INVOLUTE HOBS
- SPLINE HOBS
- SPROCKET HOBS
- WORM WHEEL HOBS
- TIMING PULLEY HOBS
- SERRATION HOBS
SPLINE HOBS
Expert Tool Industries manufacture Spline Hobs as per standard as well
as to specific requirements of the user for Straight Sided as well as
Involute Splines in Class ‘A’ and Class ‘AA’ accuracies with followingInvolute Splines in Class ‘A’ and Class ‘AA’ accuracies with following
features:
• With lugs without chamfer
• Without lugs without chamfer
• With lugs and chamfer
• Without lugs but with chamfer
• With full fillet radius without chamfer
• With full fillet radius with chamfer
SPROCKET HOBS
We cut roller chain sprockets within the range from ¼” to 3” pitch or
5mm to 76mm pitch in DIN, BS, JIS, ASA standards. These are also
manufactured in single or multi start as per various sprocket request.
Worm Wheel Hobs
Worm wheel hobs are generally designed for plunge cutting. These hobs
are a part of specific tools that match the worm shaft with sharpening
allowance. Hobs can be hollow type or integral shank type depending
upon strength constraints. Tangential, radial, topping or non-topping
hobs and special reaming type finishing hobs are also offered.
TIMING PULLEY HOBS
Manufactured in Machine Relieved Profiles for Timing Pulleys with
Straight Sided or Involute Teeth for Rubber Timing Belt Pulleys, HTD
and STD Profiles are available in the following Sizes:-
DIMENSIONS PITCH DIA
(mm)
(Inch)
2.032-20
1/5 - 1 1/4
56-100
2 1/2-4
DIMENSIONS LENGTH BORE
(mm)
(Inch)
38-88
2-4 1/2
22-32
1-1 1/4

3. SERRATION HOBS
Serration Hob is generally designed to cut serrations as per
requirement. We manufacture all types of Serration Hob cutters with
various angles and with all types of pitches.
Types of Milling Cutters
• ROTARY FORM CUTTER
• SPLINE MILLING CUTTER
• RACK CUTTER
• MAAG TYPE CUTTER
• CONCAVE / CONVEX CUTTER
• SIDE & FACE CUTTER
• STAGGERED TEETH CUTTER
• SLITTING SAW CUTTER
• SLOTTING CUTTER
• SPECIAL FORM CUTTER
• SERRATION CUTTER
• BAND SAW BLADE CUTTER
GEAR SHAPER CUTTERS
• DISC TYPE
• SHANK TYPE
• HUB TYPE
These types of cutters are used to cut internal gears of small
diameter and spline holes. Also with these it can be designed fordiameter and spline holes. Also with these it can be designed for
external gears depending on the requirement of customer.
TOOL SHARPENING SERVICES
In order to maintain the quality and accuracy of machined components, it is extremely
important that cutting tools are resharpened with higher accuracy. With the experience of
working; tool sharpening using latest technology in the field gives Expert Tool Industries an
edge over others. Special care is taken to maintain thermal and metallurgical stability of
resharpened tools at Expert Tool Industries. Extra care is taken to avoid common tool
sharpening problems such as true hob or cutter mounting on arbor, setting up to maintain
desired rake faces, flute helix and correct flute indexing, etc. It is also specially mentioned
here that required degree of accuracy is maintained on the resharpened tools for producing
quality machined components. Thus, when hobs, shaping cutters are sharpened at Expert
Tool Industries, the customers are assured of accurate and consistent quality.
MANUFACTURING / DESIGNING
Expert Tool Industries has been growing and changing, just like our customers. By
continually adapting to the markets of the 21st Century, we provide our customers better
quality products, better lead times, and better pricing. The machines and equipments used
in production are of the highest precision and are imported from Germany.
We understand the challenges of successfully competing in the global manufacturing
marketplace. To insure our customers’ success in this arena, we leverage our engineering
expertise, manufacturing experience, and technological assets.
These factors, combined with solid relationships with our own suppliers, provide the
stability that our customers need in a contract manufacturer.

4. MANUFACTURING
HOB PROFILE GRINDING PROFILE PROJECTOR - CUM - HOB TESTER
WMW Niles Gear Shaper Cutter
Profile Grinding Machine
WMW NILES DH250/4 RELIEVING MACHINE
Hob Sharpening Machine
Optical Profile Grinder
Works: Plot No.H-5/45, MIDC Chikalthana, Aurangabad – 431 210 (M.S.) India
Contact No. +919371170049, Fax: +91 240 2472076
Email: maheshdigraskar@experttoolindustries.com
Website: www.experttoolindustries.com
DESIGNING
One of the major accuracy for any tool is to get it designed
with appropriate parameters to check the profile
accordingly as it provides fast, accurate simulation of all
the tools produced. In all stages of manufacture, each tool
is rigorously inspected for its every element with design
and accuracy specifications.
The tooth profile of Gear Hobs, Shaper Cutters, Milling
Cutters, Slitting Cutters or any non-standard tools are
computer aided design which allows rapid assessment of
individual cutting requirements and ideal optimization of all
variables for maximum cutter effectiveness.