4mm 4mm Long Wood Drill, Extra Lange Bohrer, HSS Twist Drill Bits with Straight Shank for Hard Metal, Stainless Steel, Cast Iron and Other Hard Materials, 1 Piece: Amazon.com: Tools & Home
DHL 20Set HSS Bohrer Set Hex Schaft Cobalt Bohrer Bit Set Multi Bits 1.5 6.5 mm (13pcs/set)|bit set|bohrer setset bit - AliExpress
Bosch Professional Impact Control HSS Spiral Drill Bit Set for Metal, Accessories Hammer Drill - - Amazon.com
Wood and Tools
HSS-Bohrer HI-NOX 4,2 mm Ø AkkuTop | KWB | ZGONC
5pc 1/4" Hex Shank HSS 6542 Twist Drill Bit 2mm - 6mm Countersink Drill Bits SU | eBay
BOHRER ES4,2MM: HSS cobalt stainless steel drill bit, 4.2 mm at reichelt elektronik
Bohrer Doppelbohrer HSS Ø 4,2 mm - 4,2 x L49 mm geschliffen | goebel-shop.com