Shandong Denso Pricision Tools Co.,Ltd.

non-standard two-level countersunk head step drill bit for screw counterbore HSS

$1.71

~~$2.86~~ $1.71

Sale

Specification M3（Φ3.4-6.5） M4（Φ4.5-8） M5（Φ5.5-9.5） M6（Φ6.6-11） M8（Φ9-14） M10（Φ11-17.5） M12（Φ14-20） Support non-standard customization，for more specifications，please consult customer service

Quantity

Features:
(1) High-quality HSS, with good willfulness and strong wear resistance
(2) Fully ground spiral cutting edge, smooth chip removal, fast drilling speed and higher efficiency, and sharper cutting
(3) Overall nitriding treatment