Home
Supplier Discovery
Tools & Hardware
Drill Bit
Masonry Bit Factories & Companies
Filter
Category
Construction & Decoration
Electrical & Electronics
Light Industry & Daily Use
Manufacturing & Processing Machinery
Metallurgy, Mineral & Energy
More
Management Certification
Others
ISO9001:2015
ANSI/ESD
ISO 9001
ISO45001:2018
More
R&D Capacity
OEM
ODM
Own Brand
Others
Annual Revenue
<1 Million USD
1 ~ 2.5 Million USD
2.5 ~ 5 Million USD
5 ~ 10 Million USD
10 ~ 50 Million USD
More
No.of Employees
Less than 5 People
5-50 People
51-200 People
201-500 People
501-1000 People
More
Province & Region
Anhui
Beijing
Chongqing
Fujian
Guangdong
More
about masonry bit
Technological Innovation
Reliable Supply Chains
Substantial Manufacturing Capabilities
masonry bit
700+ factories verified
Yueqing Green Arrow Tools Co., Ltd
10 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Premium Long Diamond Countersink Drill Bit for Masonry Tiles
US$
0.80
-
1.80
1,000 Pieces
(MOQ)
Triangle Masonry Drill Bit Fully Ground Type N HSS Cobalt
US$
0.65
-
0.99
500 Pieces
(MOQ)
Premium Green Arrow Masonry Twist Drill Bit Set for Professionals
US$
1.50
-
2.30
500 Pieces
(MOQ)
Triangle Masonry Twist Drill Bit DIN338 Metric HSS Cobalt
US$
0.65
-
0.99
500 Pieces
(MOQ)
1/4
DANYANG DAMING TOOLS CO., LTD.
11 yrs
·
Trading Company
Send Inquiry
Easy Debris Removal Corrosion Resistance Masonry Drill Bit with Galvanized Surface Finish
US$
0.01
-
1.00
1 Piece
(MOQ)
High Quality Percussion Concrete Block Masonry Drill Bit Set SDS Plus Rotary Hammer Drill Bits
US$
0.01
-
1.00
1 Piece
(MOQ)
SDS Plus 4 Flute Carbide Tip Electric Hammer Block Masonry Concrete Drill Bit
US$
0.10
-
25.00
1 Piece
(MOQ)
25*600mm Masonry Drill Bits for Extra Strength and Reduced Breakage
US$
0.01
-
1.00
1 Piece
(MOQ)
1/4
Jiangsu Borui Tools Co., Ltd.
19 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Suborui High Quality Broca SDS Max Shank Cross Carbide Tipped 6 Cutters U Flute Rotary Hammer Drill Bits for Masonry Concrete Drilling
US$
0.90
-
9.90
50 Pieces
(MOQ)
Suborui Broca Para Impacto 3 Flute Carbide Tipped SDS Max Impact Hammer Drill Bits for Masonry Concrete Brick Stone Block
US$
0.90
-
9.90
50 Pieces
(MOQ)
Suborui 6mm-12mm Hex Shank Multifunction Cross Carbide Tip Glass Masonry Tile Drill Bit for Masonry Wall Brick Drilling
US$
0.39
-
0.59
100 Pieces
(MOQ)
Suborui Laser Welded Water Drilling Bits Diamond Cutting Tools Core Drill Bit for Concrete Masonry Well Drilling
US$
1.50
-
19.90
10 Pieces
(MOQ)
1/4
Saame Tools (Shanghai) Import & Export Co., Ltd.
26 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Kendo 8PC Metric Masonry Drill Bit Set Sand Blasting Finish Drilling Bit Unique Design of Family Looking
US$
1.00
-
10.00
1 Set
(MOQ)
Kendo Masonry Drill Bit SDS Plus Shank Hammer Drill Bit for Concrete
US$
3.00
-
5.00
1 Piece
(MOQ)
Kendo High Quality Construction Masonry Drill Bit for Concrete Brick Drilling Ceramic Tile Drill Set Masonry Dril
US$
3.00
-
5.00
1 Piece
(MOQ)
Kendo Hammer Drill Bit for Concrete SDS-Plus Masonry Drill Bit for Natural Stone
US$
3.00
-
5.00
1 Piece
(MOQ)
1/4
Zhenjiang Suran Tools Co., Ltd.
9 yrs
·
Trading Company
Send Inquiry
Laser Welded Diamond Core Bits Hole Saws for Reinforced Concrete Masonry
US$
1.00
50 Pieces
(MOQ)
SDS Max Hammer Drill Bit for Wall Masonry Concrete
US$
1.00
200 Pieces
(MOQ)
Laser Welded Diamond Wet Core Drill Bits for Asphalt Granite Masonry Reinforced Concrete
US$
2.00
100 Pieces
(MOQ)
Masonry Drill Chisel Kit Diamond Drill Bit
US$
16.90
50 Pieces
(MOQ)
1/4
Xuzhou Perfect Tools Co., Ltd.
4 yrs
·
5.0
·
Trading Company
Send Inquiry
Hexagonal Mutilfuction Four-Edged Serrated Eccentric Masonry Glass Tile Drill Bits
US$
0.50
-
2.00
500 Pieces
(MOQ)
Round Shank Sand Blasted S4 Flute Carbide Tipped Masonry Drill Bit for Concrete Brick Masonry Drilling
US$
0.20
-
5.00
1,000 Pieces
(MOQ)
Carbide Tipped Masonry Drill Bit with Countersink Depth Gauge Stop for Fibre Cement
US$
0.25
-
5.00
1,000 Pieces
(MOQ)
Impact Double R Hex Shank Universal Multi Purpose All in One Drill Bit for Concrete Tile Masonry
US$
0.30
-
5.00
1,000 Pieces
(MOQ)
1/4
Hebei Senmine Technology Co., Ltd.
4 yrs
·
5.0
Send Inquiry
Diamond Drill Crown Core Drilling Bit for Concrete Masonry Wall Diamond Core Drill Bit
US$
5.99
-
7.05
1 Piece
(MOQ)
Diamond Core Masonry Drilling Bits for Concrete and Reinforced Diamond Tool Concrete Core Drill Bits
US$
5.59
-
6.58
1 Piece
(MOQ)
M22 Sintered Wet Diamond Core Hole Saw All Sizes Drill Bits for Masonry
US$
4.07
-
4.56
1 Piece
(MOQ)
180mm Diamond Core Drill Bit Wall Concrete Perforator Masonry Drilling for Water Wet Marble Granite Wall Drilling Tools
US$
2.70
-
2.90
1 Piece
(MOQ)
1/4
BEHAPPY CRAFTS (SUZHOU) CO., LTD.
8 yrs
·
4.9
·
Manufacturer/Factory & Trading Company
Send Inquiry
Guarteened Quality Hand Tool Masonry Drill Bit for Concrete with BSCI Certificated
US$
0.15
1,000 Pieces
(MOQ)
Customized Tct Forstner Drill Bit with Stable Quality
US$
9.00
1,000 Sets
(MOQ)
High Quality Twist Drill Bit with Carton Packing
US$
2.50
1 Piece
(MOQ)
Online Shopping Heavy Duty Twist Drill Bit with Straight Shank
US$
2.50
1 Piece
(MOQ)
1/4
U·BRIGHT SOLUTIONS Co., Ltd.
7 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Professional Masonry Drill Bit Alignment Tool Set for Accuracy
US$
10,000.00
-
25,000.00
1 Piece
(MOQ)
Heavy-Duty Masonry Drill Bits for Professional Construction Projects
US$
10,000.00
-
25,000.00
1 Piece
(MOQ)
Heavy-Duty Precision Drill Bit Alignment Tool for Masonry Projects
US$
10,000.00
-
25,000.00
1 Piece
(MOQ)
Heavy-Duty Concrete Drill Bit for Precision Masonry Work
US$
10,000.00
-
25,000.00
1 Piece
(MOQ)
1/4
Nanjing Hawco Tools Co., Ltd
9 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Efficient Perfect for Masonry Brick Hard Stone Work SDS Integral Drill Bit
Negotiable
50 Pieces
(MOQ)
High Strength Durable Industrial Grade Concrete Masonry SDS Integral Drill Bit
Negotiable
50 Pieces
(MOQ)
High-Speed Drilling with SDS Integral Bits on Concrete and Masonry
Negotiable
50 Pieces
(MOQ)
Custom-Made Cast Metal Steel Processing Solid Carbide Straight Groove Step Drill Bit with Coating and Coolant Holes for Hard Metal Drilling
US$
0.15
-
3.00
400 Pieces
(MOQ)
1/4
Ningbo Yinzhou Ternal Machinery Co., Ltd.
9 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Masonry Drill Bits – Power Through Concrete & Brick
US$
3.00
30 Pieces
(MOQ)
Masonry Drill Bits – Power Through Concrete & Brick
US$
3.00
30 Pieces
(MOQ)
R25 Es Ess Button Drill Bit for Grouting Drilling Hollow Bar System
US$
1.29
1 Piece
(MOQ)
Self-Drilling Hollow Anchor Drilling Bit
US$
1.29
1 Piece
(MOQ)
1/4
Dezhou Drillstar Co., Ltd
13 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Imporved Efficiency Masonry Drill Bit Set Tungsten Carbide Tip Hex Shank Electric Hammer Drill Bit
US$
34.00
5 Pieces
(MOQ)
High Hardness and Toughness Golden Color Cross-Type Tungsten Carbide Drill Bit for Masonry Drilling with Hex Shank
US$
34.00
5 Pieces
(MOQ)
Glass Drill Hex Shank Cross Drill Bit Sets Tungsten Carbide Masonry Drill Bit High Quality Drill Bit for Glass, Tile, Ceramic
US$
34.00
5 Pieces
(MOQ)
Time-Limited Drill Bits Set for Metal D8.1-10*L105 Tungsten Carbide Drill Bits for Machine Tools Drill Bit Sets Metal
US$
25.00
-
55.00
1 Piece
(MOQ)
1/4
DONGYAN INTERNATIONAL CO., LTD.
5.0
Send Inquiry
Masonry Drill Bit/Diamond Hole Saw
US$
2.95
-
3.20
50 Pieces
(MOQ)
Masonry Core Bits for Granite, Marble, and Concrete Countertops
Negotiable
100 Pieces
(MOQ)
Masonry Diamond Core Drill Bit Manufacturer
US$
2.95
-
3.20
50 Pieces
(MOQ)
Diamond Core Drill Bits/Masonry Drill Bit
US$
2.95
-
3.20
50 Pieces
(MOQ)
1/4
Yueqing Hengda Tools Co., Ltd.
28 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
SDS Shank Impact Drill Bits for Masonry
US$
0.253
1,000 Pieces
(MOQ)
DIN 8035 SDS Plus Concrete Hammer Drill Bit
US$
0.253
1,000 Pieces
(MOQ)
SDS Plus Shank Electric Hammer Drill Bits for Concrete & Masonry
US$
0.253
1,000 Pieces
(MOQ)
Factory Supply 40 Cr Masonry Drill Bits for Concrete and Masonry
US$
0.14
1,000 Pieces
(MOQ)
1/4
Hangzhou Union Hardware Co., Ltd
3 yrs
·
5.0
·
Trading Company
Send Inquiry
3PC/Lot 6 8 10mm SDS Plus Drill Bit 260mm Hammer Concrete Bits S4 Slot Tip Masonry Drill Brick Wall Block Power Tools 001
US$
0.50
-
1.50
2,000 Pieces
(MOQ)
Concrete Stone Drill Bits for Masonry & Carpenter Accessories
US$
0.50
-
1.50
2,000 Pieces
(MOQ)
High Quality Percussion Concrete Block Masonry Drill Bit Set SDS Plus Rotary Hammer Drill Bits
US$
0.50
-
1.50
2,000 Pieces
(MOQ)
6X110mm 6X150mm 6X200mm Cross Tip 4 Edged Carbide Tipped Electric Hammer Masonry Drill Bit
US$
0.50
-
1.50
2,000 Pieces
(MOQ)
1/4
Danyang Speedy Tools Co., Ltd
11 yrs
·
Trading Company
Send Inquiry
5PCS Tct Sand Blasted Concrete Masonry Drill Bit (4, 5, 6, 8, 10mm)
US$
1.00
-
1.80
500 Pieces
(MOQ)
7PCS Masonry Concrete Drill Bit Set for Tile, Brick, Glass, Plastic, Wood, Ceramic, Porcelain
US$
2.05
-
3.05
300 Pieces
(MOQ)
TCT Sand Blasted Concrete Masonry Drill Bit
US$
0.068
-
1.80
500 Pieces
(MOQ)
SDS Plus Masonry Hammer Drill Bit Carbide Cross Tip
US$
0.141
-
2.186
500 Pieces
(MOQ)
1/4
QUANZHOU ZHUOSHI SUPERHARD TOOL CO., LTD.
5.0
Send Inquiry
Diamond Tool Core Bits Vacuum Brazed HSS Vb Porcelain Concrete Electroplated Masonry Hand Cutting Tool Dry Masonry Porcelain Tile Drill Bit
US$
4.50
-
7.00
5 Pieces
(MOQ)
Diamond Tool Vacuum Brazed Diamond Tile Core Drilling Bits Drills Hole Cutter Drill Bit for Porcelain Masonry Granite Marble Dekton
US$
4.50
-
7.00
5 PCS
(MOQ)
Diamond Tool Core Bits Vacuum Brazed HSS Porcelain Hand Cutting Tool Dry Masonry Porcelain Tile Drill Bit for Ceramic Porcelain Dekton
US$
5.00
-
20.00
5 Pieces
(MOQ)
Hexagonal Handle Masonry Drilling Tool Center Drill Bits
US$
0.54
10 Pieces
(MOQ)
1/4
Qewitco Fasteners Co., Ltd
23 yrs
·
Trading Company
Send Inquiry
Efficient 10-Piece Hand Tool Drill Bits for Masonry Applications
US$
5.00
-
15.00
1,000 Sets
(MOQ)
High-Quality Hammer Drill Bit Set with Free Sample and Hex Shank Masonry Drill Bit
US$
5.00
-
15.00
1,000 Pieces
(MOQ)
Versatile 10-Piece High-Speed Steel Drill Bits for Masonry Work
US$
4.00
-
10.00
1,000 Sets
(MOQ)
Masonry Drill Bit Hammer Drill Bit Set for Precise and Efficient Drilling in Metal, Wood and Plastic
US$
5.00
-
15.00
1,000 Pieces
(MOQ)
1/4
Dalian Heshe Trading Co., Ltd.
5.0
Send Inquiry
Professional Masonry Solid Tungsten Carbide Spiral Drill Bit for Sheet Metal
US$
1.00
-
2.50
10 Pieces
(MOQ)
13mm/0.51" Flute Length 1/4" Hex Shank Solid Tungsten Carbide Masonry Drill Bit
US$
1.00
-
2.50
10 Pieces
(MOQ)
Solid Masonry Tungsten Carbide Drill Bits for Concrete Brick Drywall
US$
1.00
-
2.50
10 Pieces
(MOQ)
High Precision Solid Tungsten Carbide 35mm Drill Bit for Plastic Masonry
US$
1.00
-
2.50
10 Pieces
(MOQ)
1/4
Wuhan Wanbang Laser Diamond Tools Co., Ltd.
24 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
Professional Diamond Core Drill Bit, Concrete Drill for Hollowing Concrete and Masonry
US$
19.80
-
230.00
1 Piece
(MOQ)
4 Inch 102mm Core Drill Bit for Reinforced Concrete and Hard Masonry with Rooftop Segments
US$
20.00
-
520.00
10 Pieces
(MOQ)
Laser Welded Line up Diamond Wet Core Drill Bits for Drilling Reinforced Concrete
US$
20.00
-
570.00
10 Pieces
(MOQ)
Heavy-Duty Laser Welded Concrete Drill Bit for Tough Jobs
US$
16.15
-
520.00
10 Pieces
(MOQ)
1/4
Shijiazhuang Corediam Tools Technology Co., Ltd.
5.0
Send Inquiry
Laser Welded Diamond Core Drill Bits for Concrete and Masonry/Diamond Tool
US$
10.00
-
150.00
10 Pieces
(MOQ)
1''-14'' Diamond Wet Core Drill Bit with Turbo Segment for Concrete and Masonry/Diamond Tools/Drilling Tools/Fast Drilling
US$
10.00
-
150.00
10 Pieces
(MOQ)
Diamond Core Drill Bits with Fast Drilling Speed for Concrete and Masonry in All Size/Diamond Tools/Drilling Tools
US$
10.00
-
150.00
10 Pieces
(MOQ)
Diamond Core Drill Bit with Turbo Segment for Concrete and Masonry in All Size/Diamond Tools/Drilling Tools
US$
10.00
-
150.00
10 Pieces
(MOQ)
1/4
Jiangsu Right Import&Export Co., Ltd.
5.0
Send Inquiry
Masonry Drill Bits 1/4" 5/16" 3/8" 1/2 Inch for Drilling Concrete Tile Brick Glass Metal Plastic and Wood Yg8 Hard Alloy
US$
0.15
-
5.00
1 Piece
(MOQ)
Triangle Drill Bit 5PCS Masonry Drill Bit Set and Multifunctional Concrete Drill Bit Professional Ceramic Tile Drill Bit and Cemented Carbide Drill Bits
US$
0.15
-
5.00
1 Piece
(MOQ)
Masonry Drill Bit 1/2 Inches Black/White Drill Concrete Stone for Brick Tile Ceramic Asphalt Marble
US$
0.15
-
5.00
1 Piece
(MOQ)
DIN Standard Masonry Drill Bit with Chrome Coated Carbide Tipped Masonry Bit Sandblasted Round Shank 6-20mm
US$
0.15
-
5.00
1 Piece
(MOQ)
1/4
Changzhou Hongjian Tools Co., Ltd.
18 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
High Quality Cheap Prise Original Carbide Tipped Masonry Drill Bits for Concrete
US$
1.20
-
55.00
5 Pieces
(MOQ)
Original Carbide Tipped Masonry Drill Bits for Concrete
US$
1.50
-
55.00
5 Pieces
(MOQ)
High Performencr Original Carbide Tipped Masonry Drill Bits for Concrete
US$
1.20
-
55.00
5 Pieces
(MOQ)
Cheap Prise Original Carbide Tipped Masonry Drill Bits for Concrete
US$
1.20
-
55.00
5 Pieces
(MOQ)
1/4
Qidong Fengsu Drilling Tools Co., Ltd.
5.0
Send Inquiry
High Quality Electroplated Diamond Masonry Concrete Coring Bit
US$
13.00
-
15.00
1 Piece
(MOQ)
Fs Factory Masonry Concrete Strata Thread Corn Hole Drilling Bits
US$
58.00
-
62.00
1 Piece
(MOQ)
Spot Drill Bits for Masonry & Concrete
US$
71.00
-
75.00
1 pieces
(MOQ)
China Drill Bits Manufacturer Drill Bits for Masonry & Concrete
US$
396.00
-
400.00
1 pieces
(MOQ)
1/4
Jiangsu Yaofeng Tools Co., Ltd.
34 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Electric Hammer Masonry Concrete Drill Bit for Drilling Brick Block
US$
0.50
1 pieces
(MOQ)
Metric Masonry Drill Bit for Concrete/Granite/Brick
US$
0.03
-
15.00
300 set
(MOQ)
SDS Plus 40cr Yg8c Carbide Tip Concrete Hammer Drill Bit for Concrete Wall Masonry Drilling
US$
0.24
-
2.40
500 pieces
(MOQ)
8 PCS Set Masonry Drill Bits for Concrete Drilling
US$
1.56
-
1.68
1 pieces
(MOQ)
1/4
Jiaxing Grandfast Hardware Co., Ltd.
12 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Electric Hammer Drill Bit for Drilling The Concrete Rock Granite Stone Masonry Hole
US$
0.50
100 Pieces
(MOQ)
Hex Shank SDS Masonry and Hammer Drill Bits
US$
0.50
100 Pieces
(MOQ)
Carbide SDS Electric Masonry Drill Bit Hammer Drill Bit
US$
0.50
100 Pieces
(MOQ)
Carbon Steel Shank Drill Bits for Concrete Screws Masonry Drill Bit
US$
0.50
100 Pieces
(MOQ)
1/4
Danyang Ergaster Tools Co., Ltd.
12 yrs
·
Manufacturer/Factory & Trading Company
Send Inquiry
High-Performance Masonry Drill Bit for Fast, Precise Drilling
US$
0.25
-
0.30
1,000 Pieces
(MOQ)
Heavy-Duty SDS Masonry Drill Bit for Stone and Concrete
US$
0.25
-
0.30
1,000 Pieces
(MOQ)
Heavy-Duty Masonry Drill Bit for Precision Concrete Work
US$
0.25
-
0.30
1,000 Pieces
(MOQ)
Premium Heavy-Duty SDS Plus Drill Bits for Tough Masonry Tasks
US$
0.25
-
0.30
1,000 Pieces
(MOQ)
1/4
Hangzhou Xinsheng Precision Machinery Co., Ltd.
10 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Pilihu High Quality 6mm 8mm 10mm 12mm Brazed Dry Diamond Drill Bit Hole Saw for Granite Marble Masonry
US$
0.55
-
5.80
10 Pieces
(MOQ)
6-60mm Diamond Hole Saw Set Core Drill Bit for Masonry Brick Drilling
US$
26.50
-
27.50
1 Piece
(MOQ)
Pilihu High Quality Sintered Fast Cutting Hole Saw Diamond Core Drill Bit for Granite Marble Concrete Ceramic Masonry Drilling
US$
4.80
-
37.00
10 Pieces
(MOQ)
17 PCS SDS Plus Rotary Hammer Drill Bit Set Stone Drills and Chisels Concrete Hammer Drill Bit
US$
8.80
-
11.00
5 Pieces
(MOQ)
1/4
Yongkang Shi Pengcheng Abrasive & Apparatus Co., Ltd.
14 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Sali Carbide Single Tip SDS Plus Hammer Drill Bit for Concrete Masonry Granite
US$
0.33
-
2.40
100 Pieces
(MOQ)
Sali Wholesale Multi Purpose Masonry Drill Bit
US$
0.20
-
0.23
800 Pieces
(MOQ)
Sali 5PCS Sand-Blasted Carbide Tip Masonry Drill Bits for Concrete
US$
1.65
-
1.80
120 Pieces
(MOQ)
Sali Professional Quality Construction Tools Masonry Drill Bit
US$
0.20
-
0.23
800 Pieces
(MOQ)
1/4
Johnson Tools Manufactory Co., Ltd.
20 yrs
·
5.0
·
Manufacturer/Factory & Trading Company
Send Inquiry
Factory Price Drilling Tools Od32-350mm Concrete Diamond Core Drilling Bits for Masonry & Concrete
US$
5.80
-
170.00
50 Pieces
(MOQ)
Masonry Drilling Stone Hole Saw Diamond Core Drilling Bits for Ceramic Granite
US$
16.50
-
17.00
10 Pieces
(MOQ)
Diamond Drilling Tool Core Masonry Stone Drill Bit for Drilling Stone Countertop
US$
5.80
-
17.00
50 Pieces
(MOQ)
6 mm Vacuum Brazed Diamond Hole Saw Drill Bit Drilling Stone Tiles Round Shank
US$
2.70
-
2.80
20 Pieces
(MOQ)
1/4
1
24
Hot Products
Hole Drill Bit
Masonry Saw
Hammer Drill Bit
Concrete Core Bit
Masonry Drill Bits
Twist Drill Bit
Pdc Bit
HSS Bit
Related Manufacturers & Supplier
HSS Drill Bit Factories
Auger Bit Factories
Masonry Core Bit Factories
Sds Masonry Bit Factories
Masonry Drill Bits Sets Manufacturers
Electric Hammer Drill Bit Manufacturers
Sds Drill Bit Manufacturers
Sds Plus Drill Bit Manufacturers