7-piece stone drill set
sizes: 4, 5, 6, 8, 9, 10, 12 mm
diameter 4, 5, 6, 8, 9, 10, 12 mm
total length 70, 90, 100, 120, 120, 120, 150 mm
working part length 35, 50, 60, 80, 80, 80, 100 mm
tool holder type cylindrical
material 40cr
hardness 47 hrc
material blade yg8c
fork stiffness 89–90 hrc
drill tip angle 130°
number of pieces included in the set 7
application concrete, silicates, brick
symbol yt-4390
YATO Tools has built many agents in Algeria, Australia, Brazil, Chile, Israel, Malaysia, Mexico, Pakistan, Singapore, South Africa, Thailand, U.A.E... more than 50 countries. YATO tools are attractive and durable and complete in specifications.
diameter 4, 5, 6, 8, 9, 10, 12 mm
total length 70, 90, 100, 120, 120, 120, 150 mm
working part length 35, 50, 60, 80, 80, 80, 100 mm
tool holder type cylindrical
material 40cr
hardness 47 hrc
material blade yg8c
fork stiffness 89–90 hrc
drill tip angle 130°
number of pieces included in the set 7
application concrete, silicates, brick
symbol yt-4390
- Made from high-quality 40cr steel, which ensures exceptional durability.
- YG8C carbide drill bits for efficient and fast drilling
- exceptional hardness of 89–90 HRC hardened metal ensures long service life
- 130° tip angle for precise and easy drilling starts
- ideal for concrete, silicates and bricks, ensuring a wide range of applications.
- wide range of diameters from 4 mm to 12 mm for different needs
- The cylindrical handle ensures a stable and secure hold of the drill bit.
YATO
YATO is a China branch of the group TOYA S.A, which is a listed firm in Poland. YATO is a best cost-performance Europe brand of professional hand tools all over the world, with a warehouse of 4000 m2 in Shanghai, consists of more than $8 millions stocks covering over 4000 items, including general hand tools, special car repair tools, construction tools, cutting tools, measuring tools, personal protection equipment, as well as garden tools etc.YATO Tools has built many agents in Algeria, Australia, Brazil, Chile, Israel, Malaysia, Mexico, Pakistan, Singapore, South Africa, Thailand, U.A.E... more than 50 countries. YATO tools are attractive and durable and complete in specifications.
EAN: 5906083943904
Delivery method
Fedex Priority
Very fast To home & office
Very fast To home & office
$18.90
Delivery date 2026-10-27
Postal office
To the nearest Postal office (Shipping discount for order starting from 600€ or 700$)
To the nearest Postal office (Shipping discount for order starting from 600€ or 700$)
$20.60
Delivery date 2026-11-10
Courier International (Premium)
To Home or Office (Shipping discount for order starting from 600€ or 700$)
To Home or Office (Shipping discount for order starting from 600€ or 700$)
$40.40
Delivery date 2026-11-03
Fedex Economy
Fast delivery to home or office!
Fast delivery to home or office!
$14.40
Delivery date 2026-10-29
DHL Express
Fast Delivery To Home or Office (Shipping discount for order starting from 600€ or 700$)
Fast Delivery To Home or Office (Shipping discount for order starting from 600€ or 700$)
$27.30
Delivery date 2026-10-22
$56.50
$61.90
-9%
Arrives in 4-5work days
$35.00
$36.70
-5%
Arrives in 4-5work days
$39.60
Arrives in 3-4work days
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$5.80
Arrives in 3-4work days
$5.70
$6.30
-10%
Arrives in 3-4work days
$17.70
$22.30
-21%
Arrives in 3-4work days
Which hand tool steel is the most durable?
As we all know, different steels are used to make different hand tools. The properties and strength of the steels are given below.
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